/* ==========================================================================
   ANRF Donation Portal DEMO - Modern UI/UX Design System
   Professional, accessible, responsive stylesheet for public portal
   ========================================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ==========================================================================
   Design Tokens & CSS Variables
   ========================================================================== */
:root {
    /* Brand Colors - Sovereign National Blue & Warm Gold */
    --color-primary: #0F2744;
    --color-primary-dark: #09172B;
    --color-primary-light: #1A3B66;
    --color-primary-accent: #2563EB;
    --color-primary-gradient: linear-gradient(135deg, #09172B 0%, #0F2744 50%, #1A3B66 100%);
    --color-hero-gradient: linear-gradient(135deg, #061221 0%, #0C213D 45%, #153866 100%);
    
    /* Sovereign Gold & Saffron Accents */
    --color-gold: #D97706;
    --color-gold-hover: #B45309;
    --color-gold-light: #FEF3C7;
    --color-gold-gradient: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --color-gold-glow: rgba(217, 119, 6, 0.35);
    
    /* National Flag Colors */
    --color-saffron: #FF9933;
    --color-flag-white: #FFFFFF;
    --color-flag-green: #138808;
    
    /* Semantic Colors */
    --color-success: #059669;
    --color-success-light: #D1FAE5;
    --color-danger: #DC2626;
    --color-danger-light: #FEE2E2;
    --color-warning: #D97706;
    --color-warning-light: #FEF3C7;
    --color-info: #0284C7;
    --color-info-light: #E0F2FE;
    
    /* Neutrals & Surfaces */
    --color-white: #FFFFFF;
    --color-off-white: #F8FAFC;
    --color-slate-50: #F8FAFC;
    --color-slate-100: #F1F5F9;
    --color-slate-200: #E2E8F0;
    --color-slate-300: #CBD5E1;
    --color-slate-400: #94A3B8;
    --color-slate-500: #64748B;
    --color-slate-600: #475569;
    --color-slate-700: #334155;
    --color-slate-800: #1E293B;
    --color-slate-900: #0F172A;
    
    --color-text: #1E293B;
    --color-text-muted: #64748B;
    --color-text-light: #475569;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    --color-border-hover: #CBD5E1;
    
    --color-footer-bg: #09172B;
    --color-footer-text: #F8FAFC;
    
    /* Typography */
    --font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', 'Plus Jakarta Sans', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    /* Layout & Spacing */
    --container-max: 1200px;
    --header-height: 72px;
    --topbar-height: 38px;
    
    /* Radii */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.07), 0 2px 4px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.09), 0 4px 10px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 40px rgba(15, 23, 42, 0.12), 0 8px 16px rgba(15, 23, 42, 0.06);
    --shadow-glow-gold: 0 8px 24px rgba(217, 119, 6, 0.28);
    --shadow-glow-primary: 0 8px 24px rgba(15, 39, 68, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    font-size: 0.975rem;
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-off-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main#main-content {
    flex: 1 0 auto;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-slate-900);
    line-height: 1.25;
    margin-top: 0;
    letter-spacing: -0.015em;
}

h1 { font-size: 2.35rem; }
h2 { font-size: 1.85rem; }
h3 { font-size: 1.45rem; }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--color-text);
}

a {
    color: var(--color-primary-accent);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--color-gold);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Containers */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.sr-only:focus {
    position: fixed;
    top: 10px;
    left: 10px;
    width: auto;
    height: auto;
    padding: 10px 16px;
    background: var(--color-gold);
    color: #ffffff;
    z-index: 9999;
    border-radius: var(--radius-sm);
    font-weight: 700;
}

/* ==========================================================================
   Accessibility & Modes
   ========================================================================== */
body.font-size-large { font-size: 18px; }
body.font-size-small { font-size: 14px; }
body.high-contrast {
    filter: contrast(1.35);
    --color-off-white: #FFFFFF;
    --color-slate-900: #000000;
    --color-text: #000000;
    --color-primary: #001B3A;
    --color-border: #94A3B8;
}

/* ==========================================================================
   Demo Disclaimer Banner
   ========================================================================== */
.demo-banner {
    background: linear-gradient(90deg, #991B1B 0%, #DC2626 50%, #991B1B 100%);
    color: #FFFFFF;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    padding: 7px 15px;
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    position: relative;
    z-index: 101;
}

.demo-banner::before {
    content: "⚠️";
    font-size: 0.85rem;
}

/* ==========================================================================
   Top Accessibility Bar
   ========================================================================== */
.top-bar {
    background: #FFFFFF;
    border-bottom: 1px solid var(--color-slate-200);
    font-size: 0.8rem;
    color: var(--color-slate-600);
    padding: 4px 0;
    position: relative;
    z-index: 99;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-bar-gov-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--color-slate-700);
    font-size: 0.78rem;
}

.top-bar-gov-badge span.emblem-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-saffron);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.accessibility-controls {
    display: flex;
    align-items: center;
    gap: 3px;
    background: var(--color-slate-100);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-slate-200);
}

.accessibility-controls button,
.contrast-toggle button {
    background: transparent;
    border: none;
    color: var(--color-slate-700);
    font-weight: 700;
    font-size: 0.75rem;
    padding: 3px 7px;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.accessibility-controls button:hover,
.contrast-toggle button:hover {
    background: #FFFFFF;
    color: var(--color-primary);
    box-shadow: var(--shadow-xs);
}

.contrast-toggle {
    display: flex;
    gap: 4px;
}

.lang-switch {
    position: relative;
}

.lang-switch a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--color-slate-100);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-slate-200);
    transition: var(--transition-fast);
}

.lang-switch a:hover {
    background: var(--color-gold-light);
    color: var(--color-gold-hover);
    border-color: var(--color-gold);
    text-decoration: none;
}

/* ==========================================================================
   Main Header & Navigation (Glassmorphism & Sticky)
   ========================================================================== */
.main-header {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-slate-200);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.main-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: var(--transition-fast);
}

.logo:hover {
    text-decoration: none;
    opacity: 0.95;
}

.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.08));
}

.logo-text {
    display: flex;
    flex-direction: column;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-slate-900);
    line-height: 1.15;
    letter-spacing: -0.01em;
}

.logo-text small {
    font-family: var(--font-family);
    font-size: 0.725rem;
    font-weight: 600;
    color: var(--color-gold);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 2px;
}

/* Nav menu */
nav#main-nav {
    display: flex;
    align-items: center;
}

.main-nav {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
}

.main-nav > li {
    position: relative;
}

.main-nav > li > a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-slate-700);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}

.main-nav > li > a:hover {
    color: var(--color-primary);
    background: var(--color-slate-100);
    text-decoration: none;
}

.main-nav > li.active > a {
    color: var(--color-primary);
    background: rgba(15, 39, 68, 0.08);
    font-weight: 700;
}

.main-nav > li.active > a::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 14px;
    right: 14px;
    height: 3px;
    background: var(--color-gold);
    border-radius: 3px;
}

/* Dropdown Menu */
.has-dropdown > a::after {
    content: "▾";
    font-size: 0.8rem;
    margin-left: 2px;
    transition: transform 0.2s ease;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 230px;
    background: #FFFFFF;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-slate-200);
    padding: 8px 0;
    margin-top: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-smooth);
    z-index: 1000;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 18px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-slate-700);
    transition: var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--color-slate-50);
    color: var(--color-gold);
    padding-left: 22px;
    text-decoration: none;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: var(--color-slate-100);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px;
    transition: var(--transition-fast);
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-slate-800);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.mobile-toggle:hover {
    background: var(--color-slate-200);
}

/* ==========================================================================
   Hero Section - Sovereign National Research Portal
   ========================================================================== */
.hero-section {
    background: var(--color-hero-gradient);
    color: #FFFFFF;
    padding: 70px 0 65px;
    position: relative;
    overflow: hidden;
}

/* Radiant grid overlay */
.hero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 80% 20%, rgba(217, 119, 6, 0.18) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.22) 0%, transparent 45%),
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: #FEF3C7;
    margin-bottom: 22px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.hero-badge::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-saffron);
    box-shadow: 0 0 10px var(--color-saffron);
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-section p {
    font-size: 1.18rem;
    line-height: 1.6;
    color: #CBD5E1;
    max-width: 650px;
    margin: 0 auto 32px;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 35px;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 34px;
    background: var(--color-gold-gradient);
    color: #FFFFFF !important;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glow-gold);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none !important;
    letter-spacing: 0.3px;
}

.btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(217, 119, 6, 0.45);
    background: linear-gradient(135deg, #FBBF24 0%, #D97706 100%);
}

.btn-hero-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.08);
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    text-decoration: none !important;
}

.btn-hero-outline:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.45);
    transform: translateY(-2px);
}

/* Tricolor Flag Glow Line */
.hero-flag-line,
.flag-line {
    display: flex;
    width: 140px;
    height: 4px;
    margin: 0 auto;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 0 12px rgba(255, 153, 51, 0.3);
}

.hero-flag-line span,
.flag-line span {
    flex: 1;
    height: 100%;
}

.hero-flag-line span:nth-child(1),
.flag-line span:nth-child(1) { background: var(--color-saffron); }

.hero-flag-line span:nth-child(2),
.flag-line span:nth-child(2) { background: #FFFFFF; }

.hero-flag-line span:nth-child(3),
.flag-line span:nth-child(3) { background: var(--color-flag-green); }

/* Hero Stats Counter Strip */
.hero-stats-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    max-width: 960px;
    margin: 45px auto 0;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-lg);
    box-shadow: 0 16px 36px rgba(0,0,0,0.25);
}

.hero-stat-box {
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    padding: 8px 12px;
}

.hero-stat-box:last-child {
    border-right: none;
}

.hero-stat-value {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    font-weight: 800;
    color: #FEF3C7;
    line-height: 1.1;
    margin-bottom: 3px;
}

.hero-stat-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: #CBD5E1;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==========================================================================
   Page Headers (Standard Inner Pages)
   ========================================================================== */
.page-header {
    background: var(--color-hero-gradient);
    color: #FFFFFF;
    padding: 42px 0 38px;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.page-header h1 {
    font-size: 2.1rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 8px;
    letter-spacing: -0.015em;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.85rem;
    color: #94A3B8;
}

.breadcrumb li a {
    color: #CBD5E1;
    font-weight: 500;
}

.breadcrumb li a:hover {
    color: #FFFFFF;
    text-decoration: underline;
}

.breadcrumb li + li::before {
    content: "›";
    color: #64748B;
    margin-right: 8px;
    font-size: 1rem;
}

.breadcrumb li:last-child {
    color: #FEF3C7;
    font-weight: 600;
}

/* ==========================================================================
   Sections & Layout Utilities
   ========================================================================== */
.section {
    padding: 60px 0 80px;
}

.section-light {
    background-color: var(--color-off-white);
}

.section-white {
    background-color: #FFFFFF;
}

.section-title {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 45px;
}

.section-title h2 {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--color-slate-900);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-gold);
    border-radius: 4px;
    margin: 12px auto 0;
}

.section-title p {
    font-size: 1.05rem;
    color: var(--color-slate-600);
    margin: 0;
}

/* ==========================================================================
   How to Donate - Elevated Interactive Cards
   ========================================================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.card {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-slate-300);
    transition: var(--transition-fast);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-slate-300);
}

.card:hover::before {
    background: var(--color-gold);
}

.card-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 22px;
    transition: var(--transition-fast);
}

.card:hover .card-icon {
    transform: scale(1.08);
}

.domestic-bg {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    color: #B45309;
}

.foreign-bg {
    background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
    color: #0369A1;
}

.wire-bg {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    color: #047857;
}

.card-tag {
    display: inline-block;
    align-self: flex-start;
    padding: 4px 10px;
    background: var(--color-slate-100);
    color: var(--color-slate-700);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-body h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: 10px;
}

.card-body p {
    font-size: 0.925rem;
    color: var(--color-slate-600);
    line-height: 1.6;
    margin-bottom: 22px;
    flex: 1;
}

.card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-features li {
    font-size: 0.85rem;
    color: var(--color-slate-700);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-features li::before {
    content: "✓";
    font-weight: 800;
    color: var(--color-success);
}

.btn-card {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--color-slate-900);
    color: #FFFFFF !important;
    font-weight: 700;
    font-size: 0.925rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    text-decoration: none !important;
}

.btn-card:hover {
    background: var(--color-gold);
    box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
    transform: translateY(-1px);
}

/* ==========================================================================
   Trust & Assurance Banner
   ========================================================================== */
.trust-banner {
    background: #FFFFFF;
    border-top: 1px solid var(--color-slate-200);
    border-bottom: 1px solid var(--color-slate-200);
    padding: 36px 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.trust-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    background: var(--color-slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    color: var(--color-primary);
}

.trust-text h4 {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin: 0 0 2px 0;
}

.trust-text p {
    font-size: 0.78rem;
    color: var(--color-slate-500);
    margin: 0;
    line-height: 1.35;
}

/* ==========================================================================
   Form Components & Container (Donation, Receipt, Contact)
   ========================================================================== */
.form-section {
    padding: 45px 0 80px;
}

.form-layout-2col {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 32px;
    align-items: start;
}

.form-container {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    padding: 36px 40px;
}

.form-section-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-slate-900);
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-slate-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-slate-800);
    margin-bottom: 7px;
}

.form-group label span.required {
    color: var(--color-danger);
    font-weight: 700;
}

.form-group label span.form-hint {
    font-size: 0.775rem;
    font-weight: 500;
    color: var(--color-slate-500);
    margin-left: 6px;
}

.form-control {
    width: 100%;
    padding: 11px 15px;
    font-size: 0.925rem;
    color: var(--color-slate-900);
    background-color: #FFFFFF;
    border: 1px solid var(--color-slate-300);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-primary-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    background-color: #FFFFFF;
}

.form-control::placeholder {
    color: var(--color-slate-400);
}

select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}

textarea.form-control {
    resize: vertical;
    min-height: 90px;
}

/* Quick Amount Selection Chips */
.amount-presets-wrapper {
    margin-bottom: 12px;
}

.amount-presets-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-slate-600);
    margin-bottom: 8px;
    display: block;
}

.amount-presets-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 10px;
}

.amount-preset-chip {
    background: var(--color-slate-100);
    border: 1px solid var(--color-slate-300);
    border-radius: var(--radius-sm);
    color: var(--color-slate-800);
    font-weight: 700;
    font-size: 0.875rem;
    padding: 9px 6px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.amount-preset-chip:hover {
    background: var(--color-gold-light);
    border-color: var(--color-gold);
    color: var(--color-gold-hover);
}

.amount-preset-chip.active {
    background: var(--color-gold);
    border-color: var(--color-gold-hover);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(217, 119, 6, 0.3);
}

/* Tax Benefit Preview Pill */
.tax-benefit-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    background: var(--color-success-light);
    border: 1px solid #A7F3D0;
    border-radius: var(--radius-sm);
    font-size: 0.825rem;
    color: #065F46;
    margin-top: 8px;
}

.tax-benefit-preview strong {
    font-weight: 700;
}

/* CAPTCHA Box */
.captcha-group {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--color-slate-50);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-slate-200);
}

.captcha-image {
    height: 38px;
    width: auto;
    border-radius: 4px;
}

.captcha-question {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-primary);
    padding: 2px 10px;
    background: #FFFFFF;
    border-radius: 4px;
    border: 1px solid var(--color-slate-200);
}

.captcha-refresh {
    background: #FFFFFF;
    border: 1px solid var(--color-slate-300);
    color: var(--color-slate-700);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 7px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.captcha-refresh:hover {
    background: var(--color-slate-100);
    color: var(--color-primary);
}

/* Terms Box */
.terms-box,
.checkbox-group {
    background: var(--color-slate-50);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    margin-bottom: 22px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--color-slate-700);
    cursor: pointer;
    line-height: 1.45;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 3px;
    accent-color: var(--color-gold);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    cursor: pointer;
}

/* Submit Buttons */
.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 24px;
    background: var(--color-gold-gradient);
    color: #FFFFFF !important;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-glow-gold);
    transition: var(--transition);
    text-decoration: none !important;
}

.btn-submit:hover {
    background: linear-gradient(135deg, #FBBF24 0%, #D97706 100%);
    box-shadow: 0 10px 24px rgba(217, 119, 6, 0.4);
    transform: translateY(-1px);
}

.btn-submit:active {
    transform: translateY(1px);
}

/* Validation Feedback States */
.form-control.is-invalid,
select.form-control.is-invalid,
textarea.form-control.is-invalid {
    border-color: var(--color-danger) !important;
    background-color: #FFF5F5 !important;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12) !important;
}

.checkbox-group.is-invalid,
.terms-box.is-invalid {
    border-color: var(--color-danger) !important;
    background-color: #FFF5F5 !important;
}

.invalid-feedback {
    display: block !important;
    font-size: 0.8rem !important;
    color: var(--color-danger) !important;
    font-weight: 600 !important;
    margin-top: 5px !important;
}

/* Sticky Summary Card (Right Column) */
.sticky-summary-card {
    position: sticky;
    top: calc(var(--header-height) + 20px);
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    padding: 24px 22px;
}

.summary-card-header {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-slate-900);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-slate-100);
}

.summary-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.summary-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--color-slate-600);
}

.summary-list li strong {
    color: var(--color-slate-900);
}

.summary-total {
    padding-top: 14px;
    border-top: 2px dashed var(--color-slate-200);
    margin-top: 14px;
}

.summary-total-amount {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--color-primary);
}

.summary-security-box {
    background: var(--color-slate-50);
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    color: var(--color-slate-600);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
}

/* ==========================================================================
   Donor Wall Page
   ========================================================================== */
.donor-wall-section {
    padding: 45px 0 80px;
}

.donor-wall-intro {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    padding: 32px 36px;
    margin-bottom: 35px;
}

.tier-summary-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--color-slate-100);
}

.tier-summary-item {
    background: var(--color-slate-50);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-slate-200);
    font-size: 0.85rem;
    color: var(--color-slate-700);
}

.tier-summary-item strong {
    color: var(--color-slate-900);
}

.donor-wall-grid {
    display: grid;
    grid-template-columns: 270px 1fr;
    gap: 30px;
}

.donor-wall-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-box {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.sidebar-box-header {
    background: var(--color-slate-900);
    color: #FFFFFF;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    padding: 14px 18px;
}

.category-nav-list {
    list-style: none;
    padding: 8px;
    margin: 0;
}

.category-nav-btn {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-slate-700);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.category-nav-btn:hover {
    background: var(--color-slate-100);
    color: var(--color-primary);
}

.category-nav-btn.active {
    background: var(--color-primary);
    color: #FFFFFF;
}

.category-nav-btn .count-badge {
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    background: rgba(0, 0, 0, 0.08);
}

.category-nav-btn.active .count-badge {
    background: var(--color-gold);
    color: #FFFFFF;
}

.donor-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.donor-card {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    display: flex;
    gap: 16px;
    align-items: center;
    transition: var(--transition-fast);
}

.donor-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-slate-300);
}

.donor-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0F2744 0%, #1E3A8A 100%);
    color: #FFFFFF;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-xs);
}

.donor-info {
    flex: 1;
    min-width: 0;
}

.donor-name {
    font-size: 0.975rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin: 0 0 3px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.donor-meta {
    font-size: 0.8rem;
    color: var(--color-slate-500);
    margin: 0;
}

.donor-tier-badge {
    padding: 3px 9px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.tier-patron {
    background: #FEF3C7;
    color: #92400E;
    border: 1px solid #FDE68A;
}

.tier-distinguished {
    background: #E0E7FF;
    color: #3730A3;
    border: 1px solid #C7D2FE;
}

.tier-contributor {
    background: #F1F5F9;
    color: #475569;
    border: 1px solid #CBD5E1;
}

/* ==========================================================================
   Impact Stories Page
   ========================================================================== */
.impact-stats-section {
    background: #FFFFFF;
    padding: 32px 0;
    border-bottom: 1px solid var(--color-slate-200);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-slate-200);
    overflow: hidden;
}

.stat-item-box {
    padding: 24px 16px;
    text-align: center;
    border-right: 1px solid var(--color-slate-200);
}

.stat-item-box:last-child {
    border-right: none;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-slate-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.impact-filter-bar {
    padding: 36px 0 16px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-btn-pill {
    background: #FFFFFF;
    border: 1px solid var(--color-slate-300);
    color: var(--color-slate-700);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn-pill:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-btn-pill.active {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.impact-stories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    padding: 24px 0 70px;
}

.impact-card {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.impact-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.impact-card-img {
    height: 180px;
    background: var(--color-slate-900);
    position: relative;
    overflow: hidden;
}

.impact-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.impact-card:hover .impact-card-img img {
    transform: scale(1.05);
}

.impact-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 4px 12px;
    background: rgba(15, 39, 68, 0.88);
    backdrop-filter: blur(8px);
    color: #FFFFFF;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.impact-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.impact-card-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: 8px;
    line-height: 1.35;
}

.impact-card-body p {
    font-size: 0.875rem;
    color: var(--color-slate-600);
    line-height: 1.6;
    margin-bottom: 18px;
    flex: 1;
}

.impact-funding-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--color-gold-light);
    color: var(--color-gold-hover);
    border-radius: var(--radius-sm);
    font-size: 0.825rem;
    font-weight: 700;
    margin-bottom: 14px;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--color-slate-300);
}

.faq-item.active {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 18px 24px;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-slate-900);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    user-select: none;
    transition: var(--transition-fast);
}

.faq-question::after {
    content: "+";
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--color-slate-400);
    transition: transform 0.25s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-question::after {
    content: "−";
    color: var(--color-gold);
}

.faq-item.active .faq-question {
    color: var(--color-primary);
    background: var(--color-slate-50);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    transition: max-height 0.5s ease-in-out;
}

.faq-answer-inner {
    padding: 18px 24px 22px;
    font-size: 0.925rem;
    color: var(--color-slate-700);
    line-height: 1.65;
    border-top: 1px solid var(--color-slate-100);
}

/* ==========================================================================
   Receipt Search & Channels
   ========================================================================== */
.receipt-channels {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 35px;
}

.channel-card {
    background: #FFFFFF;
    border: 2px solid var(--color-slate-200);
    border-radius: var(--radius-md);
    padding: 18px 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.channel-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.channel-card.active {
    border-color: var(--color-primary);
    background: rgba(15, 39, 68, 0.04);
    box-shadow: 0 4px 12px rgba(15, 39, 68, 0.12);
}

.channel-card .icon {
    font-size: 1.4rem;
}

.channel-card h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-slate-900);
}

/* Printable Official Receipt */
.receipt-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 30px 0 60px;
}

.receipt-box {
    background: #FFFFFF;
    border: 1px solid var(--color-slate-300);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 45px 50px;
    position: relative;
}

.receipt-header-official {
    text-align: center;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--color-slate-900);
    margin-bottom: 28px;
}

.receipt-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-slate-900);
    margin-top: 10px;
}

.receipt-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.receipt-table th,
.receipt-table td {
    padding: 10px 14px;
    border: 1px solid var(--color-slate-200);
    font-size: 0.88rem;
}

.receipt-table th {
    background: var(--color-slate-50);
    font-weight: 700;
    text-align: left;
    color: var(--color-slate-800);
}

/* ==========================================================================
   Alerts & Notifications
   ========================================================================== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.5;
}

.alert-danger {
    background-color: var(--color-danger-light);
    color: #991B1B;
    border: 1px solid #FECACA;
}

.alert-success {
    background-color: var(--color-success-light);
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.alert-info {
    background-color: var(--color-info-light);
    color: #075985;
    border: 1px solid #BAE6FD;
}

.alert-warning {
    background-color: var(--color-warning-light);
    color: #92400E;
    border: 1px solid #FDE68A;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.main-footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 60px 0 0;
    margin-top: auto;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 45px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 8px;
}

.footer-col h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 2px;
    background: var(--color-gold);
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul li a {
    color: #94A3B8;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.footer-col ul li a:hover {
    color: #FEF3C7;
    padding-left: 4px;
    text-decoration: none;
}

.footer-about p {
    color: #94A3B8;
    font-size: 0.85rem;
    line-height: 1.6;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    background: rgba(0, 0, 0, 0.25);
}

.footer-bottom p {
    color: #64748B;
    font-size: 0.8rem;
    margin: 12px 0 0 0;
}

/* Floating Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-gold);
    color: #FFFFFF;
    border: none;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-gold-hover);
    transform: translateY(-3px);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-layout-2col {
        grid-template-columns: 1fr;
    }
    
    .sticky-summary-card {
        position: relative;
        top: 0;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .donor-wall-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }
    
    .top-bar-left {
        display: none;
    }
    
    .top-bar .container {
        justify-content: flex-end;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    nav#main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: #FFFFFF;
        padding: 24px;
        flex-direction: column;
        align-items: flex-start;
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transform: translateX(100%);
        transition: var(--transition-smooth);
        box-shadow: var(--shadow-xl);
    }
    
    nav#main-nav.active {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }
    
    .main-nav {
        flex-direction: column;
        width: 100%;
        gap: 8px;
    }
    
    .main-nav > li {
        width: 100%;
    }
    
    .main-nav > li > a {
        width: 100%;
        padding: 12px 16px;
        font-size: 1rem;
    }
    
    .dropdown-menu {
        position: static;
        box-shadow: none;
        border: 1px solid var(--color-slate-200);
        margin: 4px 0 8px 12px;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }
    
    .has-dropdown.open .dropdown-menu {
        display: block;
    }
    
    .hero-section {
        padding: 50px 0 45px;
    }
    
    .hero-section h1 {
        font-size: 2.1rem;
    }
    
    .hero-stats-strip {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stat-box:nth-child(2) {
        border-right: none;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-container {
        padding: 24px 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .impact-stories-grid {
        grid-template-columns: 1fr;
    }
    
    .donor-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .tier-summary-list {
        grid-template-columns: 1fr;
    }
    
    .receipt-channels {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}