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

/* CSS Custom Properties - Modern Color Palette */
:root {
    /* Primary Colors - Deep Ocean Blue */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    --primary-950: #172554;

    /* Secondary Colors - Emerald Green */
    --secondary-50: #ecfdf5;
    --secondary-100: #d1fae5;
    --secondary-200: #a7f3d0;
    --secondary-300: #6ee7b7;
    --secondary-400: #34d399;
    --secondary-500: #10b981;
    --secondary-600: #059669;
    --secondary-700: #047857;
    --secondary-800: #065f46;
    --secondary-900: #064e3b;
    --secondary-950: #022c22;

    /* Accent Colors - Vibrant Purple */
    --accent-50: #faf5ff;
    --accent-100: #f3e8ff;
    --accent-200: #e9d5ff;
    --accent-300: #d8b4fe;
    --accent-400: #c084fc;
    --accent-500: #a855f7;
    --accent-600: #9333ea;
    --accent-700: #7c3aed;
    --accent-800: #6b21a8;
    --accent-900: #581c87;
    --accent-950: #3b0764;

    /* Neutral Colors - Sophisticated Grays */
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    --neutral-950: #0a0a0a;

    /* Background Colors */
    --bg-primary: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    --bg-secondary: linear-gradient(135deg, #16213e 0%, #0f3460 100%);
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --bg-glass: rgba(255, 255, 255, 0.1);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --text-accent: var(--secondary-400);

    /* Border Colors */
    --border-primary: rgba(255, 255, 255, 0.1);
    --border-secondary: rgba(255, 255, 255, 0.2);
    --border-accent: var(--primary-500);

    /* Shadow Colors */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    --shadow-glow-green: 0 0 20px rgba(16, 185, 129, 0.3);
    --shadow-glow-purple: 0 0 20px rgba(168, 85, 247, 0.3);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--neutral-900);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-500), var(--primary-700));
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-400), var(--primary-600));
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Loading Animation - Enhanced */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--neutral-950) 0%, var(--primary-950) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-slow) ease;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid transparent;
    border-top: 3px solid var(--primary-400);
    border-right: 3px solid var(--secondary-400);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-xl);
    filter: drop-shadow(var(--shadow-glow));
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    font-family: var(--font-secondary);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-secondary);
    animation: pulse 2s ease-in-out infinite;
    letter-spacing: 0.05em;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }
}

/* Header - Glassmorphism Design */
.header {
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.logo {
    font-family: var(--font-secondary);
    font-size: 1.875rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-400), var(--secondary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.025em;
}

.logo a {
    color: inherit;
    text-decoration: none;
}

.nav {
    display: flex;
    gap: var(--space-2xl);
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-normal);
    position: relative;
    letter-spacing: 0.025em;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-400), var(--secondary-400));
    transition: width var(--transition-normal);
}

.nav a:hover {
    color: var(--text-primary);
    transform: translateY(-1px);
}

.nav a:hover::after {
    width: 100%;
}

.donate-btn {
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600)) !important;
    color: white !important;
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-green);
    border: 1px solid var(--secondary-400);
}

.donate-btn:hover {
    background: linear-gradient(135deg, var(--secondary-400), var(--secondary-500)) !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
}

/* Main Content */
.main-content {
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section - Modern Gradient */
.hero {
    background: linear-gradient(135deg,
            rgba(15, 15, 35, 0.95) 0%,
            rgba(26, 26, 46, 0.9) 25%,
            rgba(22, 33, 62, 0.85) 50%,
            rgba(15, 52, 96, 0.9) 75%,
            rgba(30, 64, 175, 0.95) 100%);
    position: relative;
    padding: var(--space-3xl) 0;
    margin-bottom: var(--space-3xl);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-secondary);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    letter-spacing: -0.025em;
    animation: slideInLeft 1s ease-out 0.3s both;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-mission {
    font-size: 1.25rem;
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
    color: var(--text-secondary);
    font-weight: 400;
    animation: slideInLeft 1s ease-out 0.5s both;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
    color: white;
    padding: var(--space-lg) var(--space-2xl);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-size: 1.125rem;
    font-weight: 700;
    font-family: var(--font-secondary);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-green);
    border: 1px solid var(--secondary-400);
    animation: slideInLeft 1s ease-out 0.7s both;
    letter-spacing: 0.025em;
}

.cta-button:hover {
    background: linear-gradient(135deg, var(--secondary-400), var(--secondary-500));
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(16, 185, 129, 0.4);
}

.hero-image {
    animation: slideInRight 1s ease-out 0.5s both;
    position: relative;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.patient-photo {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    border: 2px solid var(--border-secondary);
    transition: transform var(--transition-slow);
}

.patient-photo:hover {
    transform: scale(1.02);
}

/* Progress Section - Glass Card Design */
.progress-section {
    padding: var(--space-3xl) 0;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 1s ease-out 0.8s both;
}

.section-title {
    text-align: center;
    font-family: var(--font-secondary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-2xl);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
}

.progress-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-normal);
}

.progress-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

.progress-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.stat {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    transition: all var(--transition-normal);
}

.stat:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-2px);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.stat-value {
    display: block;
    font-family: var(--font-secondary);
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-400), var(--secondary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.progress-bar {
    height: 24px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-primary);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-500), var(--secondary-400), var(--primary-500));
    border-radius: var(--radius-full);
    transition: width 2s ease-out;
    animation: progressAnimation 2s ease-out;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes progressAnimation {
    from {
        width: 0;
    }
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

/* Recent Donations - Card Grid */
.recent-donations {
    padding: var(--space-3xl) 0;
    animation: fadeInUp 1s ease-out 1s both;
}

.donations-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.donation-item {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.donation-item:hover {
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-secondary);
}

.donor-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.donation-amount {
    color: var(--secondary-400);
    font-weight: 700;
    font-family: var(--font-secondary);
    font-size: 1.125rem;
}

/* Community Section - Enhanced Chat Design */
.community-section {
    padding: var(--space-3xl) 0;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 1s ease-out 1.2s both;
}

.chat-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-xl);
}

.messages-list {
    max-height: 450px;
    overflow-y: auto;
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
}

.message-item {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    animation: messageSlideIn 0.5s ease-out;
    transition: all var(--transition-normal);
}

.message-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.message-sender {
    font-weight: 600;
    color: var(--primary-400);
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
}

.message-text {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9375rem;
}

.message-time {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: var(--space-sm);
    font-weight: 500;
}

.message-form {
    display: grid;
    gap: var(--space-lg);
}

.message-form input,
.message-form textarea {
    padding: var(--space-lg);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.message-form input::placeholder,
.message-form textarea::placeholder {
    color: var(--text-muted);
}

.message-form input:focus,
.message-form textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.message-form button {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    padding: var(--space-lg) var(--space-2xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-secondary);
    box-shadow: var(--shadow-glow);
}

.message-form button:hover {
    background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

/* Donation Form Styles - Premium Design */
.donation-form-section {
    padding: var(--space-3xl) 0;
    min-height: 80vh;
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-3xl);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-2xl);
    animation: scaleIn 0.8s ease-out;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.form-title {
    font-family: var(--font-secondary);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
}

.form-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    font-size: 1.125rem;
    line-height: 1.6;
}

.form-group {
    margin-bottom: var(--space-xl);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--space-lg);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.payment-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-lg);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.payment-option:hover {
    border-color: var(--primary-500);
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-2px);
}

.payment-option input[type="radio"] {
    display: none;
}

.payment-option input[type="radio"]:checked~* {
    color: var(--primary-400);
}

.payment-option:has(input[type="radio"]:checked) {
    border-color: var(--primary-500);
    background: rgba(59, 130, 246, 0.1);
    box-shadow: var(--shadow-glow);
}

.payment-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    transition: transform var(--transition-normal);
}

.payment-option:hover .payment-icon {
    transform: scale(1.1);
}

.amount-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.preset-amounts {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-sm);
}

.amount-btn {
    padding: var(--space-lg);
    border: 2px solid var(--border-primary);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    color: var(--text-secondary);
    font-family: var(--font-secondary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.amount-btn:hover,
.amount-btn.selected {
    border-color: var(--secondary-500);
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-green);
}

.custom-amount {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-primary);
}

.custom-amount input {
    flex: 1;
    padding: var(--space-md);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.amount-display {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-lg);
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary-400);
    font-family: var(--font-secondary);
    border: 1px solid var(--secondary-500);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
    color: white;
    padding: var(--space-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-glow-green);
    letter-spacing: 0.025em;
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--secondary-400), var(--secondary-500));
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(16, 185, 129, 0.4);
}

/* Processing Page - Success Design */
.processing-section {
    padding: var(--space-3xl) 0;
    min-height: 80vh;
}

.processing-card {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-3xl);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-2xl);
    text-align: center;
    animation: bounceIn 1s ease-out;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }

    50% {
        opacity: 1;
        transform: scale(1.05);
    }

    70% {
        transform: scale(0.9);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.success-icon {
    font-size: 5rem;
    margin-bottom: var(--space-lg);
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(var(--shadow-glow-green));
}

.processing-title {
    font-family: var(--font-secondary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-xl);
    background: linear-gradient(135deg, var(--secondary-400), var(--secondary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
}

.donation-summary {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-xl);
    text-align: left;
    border: 1px solid var(--border-primary);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-primary);
}

.summary-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.label {
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

.value {
    color: var(--text-primary);
    font-weight: 600;
}

.processing-steps {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.processing-steps h2 {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    font-family: var(--font-secondary);
    font-weight: 700;
}

.steps-list {
    counter-reset: step-counter;
    list-style: none;
    padding: 0;
}

.steps-list li {
    counter-increment: step-counter;
    margin-bottom: var(--space-lg);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    position: relative;
    padding-left: 4rem;
    border: 1px solid var(--border-primary);
    transition: all var(--transition-normal);
}

.steps-list li:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(5px);
}

.steps-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: var(--space-lg);
    top: var(--space-lg);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-family: var(--font-secondary);
    box-shadow: var(--shadow-glow);
}

.why-invoice {
    background: rgba(16, 185, 129, 0.1);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-xl);
    text-align: left;
    border: 1px solid var(--secondary-500);
}

.why-invoice h3 {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--secondary-400);
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 1.5rem;
}

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    margin-bottom: var(--space-sm);
    padding-left: 2rem;
    position: relative;
    color: var(--text-secondary);
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-400);
    font-weight: 700;
    font-size: 1.125rem;
}

.action-buttons {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    padding: var(--space-lg) var(--space-2xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-family: var(--font-secondary);
    transition: all var(--transition-normal);
    letter-spacing: 0.025em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
    color: white;
    box-shadow: var(--shadow-glow-green);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-400), var(--secondary-500));
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Admin Styles - Professional Dashboard */
.admin-section {
    padding: var(--space-3xl) 0;
}

.admin-title {
    text-align: center;
    font-family: var(--font-secondary);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--text-primary), var(--accent-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
}

.admin-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-2xl);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s ease-out;
    transition: all var(--transition-normal);
}

.admin-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
}

.admin-card h2 {
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--primary-500);
    padding-bottom: var(--space-sm);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-form {
    display: grid;
    gap: var(--space-lg);
}

.admin-form .form-group {
    margin-bottom: var(--space-md);
}

.admin-form label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-form input,
.admin-form textarea,
.admin-form select {
    width: 100%;
    padding: var(--space-lg);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.admin-form input::placeholder,
.admin-form textarea::placeholder {
    color: var(--text-muted);
}

.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.admin-form button {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    padding: var(--space-lg) var(--space-2xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    justify-self: start;
    box-shadow: var(--shadow-glow);
    letter-spacing: 0.025em;
}

.admin-form button:hover {
    background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

.admin-messages-list,
.admin-donations-list {
    max-height: 450px;
    overflow-y: auto;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
}

.admin-message-item,
.admin-donation-item {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border-radius: var(--radius-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-primary);
    transition: all var(--transition-normal);
}

.admin-message-item:hover,
.admin-donation-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.delete-btn {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(239, 68, 68, 0.3);
}

.delete-btn:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    transform: translateY(-1px);
    box-shadow: 0 6px 12px rgba(239, 68, 68, 0.4);
}

/* Footer - Elegant Design */
.footer {
    background: linear-gradient(135deg, var(--neutral-950), var(--neutral-900));
    color: var(--text-secondary);
    text-align: center;
    padding: var(--space-2xl) 0;
    margin-top: var(--space-3xl);
    border-top: 1px solid var(--border-primary);
}

.footer p {
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.025em;
}

/* Responsive Design - Mobile First */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-lg);
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }

    .progress-stats {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: var(--space-2xl) 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .payment-methods {
        grid-template-columns: 1fr;
    }

    .preset-amounts {
        grid-template-columns: repeat(2, 1fr);
    }

    .custom-amount {
        flex-direction: column;
        align-items: stretch;
    }

    .action-buttons {
        flex-direction: column;
    }

    .nav {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .form-container,
    .processing-card {
        padding: var(--space-xl);
    }

    .admin-card {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero {
        padding: var(--space-lg) 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .preset-amounts {
        grid-template-columns: 1fr;
    }

    .form-container,
    .processing-card {
        padding: var(--space-lg);
    }

    .steps-list li {
        padding-left: 3rem;
    }

    .steps-list li::before {
        width: 2rem;
        height: 2rem;
        left: var(--space-sm);
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles for Better Accessibility */
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
a:focus-visible {
    outline: 2px solid var(--primary-400);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #f0f0f0;
        --border-primary: rgba(255, 255, 255, 0.3);
        --border-secondary: rgba(255, 255, 255, 0.5);
    }
}

/* Print Styles */
@media print {

    .header,
    .footer,
    .loading-overlay,
    .message-form,
    .admin-form,
    .action-buttons {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .main-content {
        background: white !important;
    }
}