/* This file was developed with assistance from Claude Code (Anthropic)
 * for implementation and optimization. Core design is original work.
 */

/* ============================================
   NGÜ Bibelvers-Sponsoring - Custom Styles
   ============================================ */

/* Root Variables */
:root {
    /* ==========================================
       HAUPTFARBEN (7-Farben-System NGÜ)
       ========================================== */

    /* Primärfarbe - NGÜ Rot */
    --color-primary: #dd3333;
    --color-primary-hover: #c02a2a;
    --color-primary-light: rgba(221, 51, 51, 0.1);
    --color-primary-shadow: rgba(221, 51, 51, 0.25);

    /* Erfolg - Grün */
    --color-success: #28a745;
    --color-success-hover: #1e7e34;
    --color-success-light: rgba(40, 167, 69, 0.1);
    --color-success-shadow: rgba(40, 167, 69, 0.25);
    --color-success-tint: #f0fff4;

    /* Akzent - Orange (für Info-Grafiken/Charts) */
    --color-accent: #fd7e14;
    --color-accent-hover: #e55a00;

    /* Info - Blau */
    --color-info: #007bff;
    --color-info-hover: #0056b3;
    --color-info-shadow: rgba(0, 123, 255, 0.25);

    /* Hinweis - Rosé (für Alerts und Akkordeon) */
    --color-notice: #d8c5ca;
    --color-notice-border: #c48a96;
    --color-notice-text: #7a4d56;
    --color-notice-shadow: rgba(216, 197, 202, 0.25);

    /* Sekundär - Dunkelgrau */
    --color-secondary: #100f0f;
    --color-secondary-hover: #252627;

    /* Neutral - Grau */
    --color-neutral: #6c757d;
    --color-neutral-light: #e0e0e0;
    --color-neutral-lighter: #f5f5f5;

    /* ==========================================
       TEXT-FARBEN
       ========================================== */
    --color-text-primary: #313131;
    --color-text-secondary: #232222;
    --color-text-inverse: #ffffff;

    /* ==========================================
       HINTERGRUND-FARBEN
       ========================================== */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f5f5f5;

    /* ==========================================
       FUNKTIONALE ALIASE (Bootstrap-Kompatibilität)
       ========================================== */
    --bs-primary: var(--color-primary);
    --bs-success: var(--color-success);
    --bs-danger: var(--color-primary);
    --bs-secondary: var(--color-secondary);

    /* ==========================================
       SCHATTEN
       ========================================== */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

    /* ==========================================
       SCHRIFTARTEN
       ========================================== */
    --font-family-primary: 'Poppins', sans-serif;
    --font-family-heading: 'Poppins', sans-serif;
    --font-family-secondary: 'Montserrat', sans-serif;
    --font-family-heading-secondary: 'Montserrat', sans-serif;
    --font-family-fallback: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'Courier New', Courier, monospace;

    /* ==========================================
       ABSTÄNDE
       ========================================== */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Übergänge */
    --transition-base: all 0.3s ease;
}

/* ============================================
   Grundlegende Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-primary);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

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

a:hover {
    color: darken(var(--color-primary), 10%);
    text-decoration: underline;
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    background-color: var(--color-bg-primary) !important;
    transition: var(--transition-base);
    padding: var(--spacing-md) 0;
}

.navbar-scrolled {
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-secondary) !important;
    display: flex;
    align-items: center;
}

.navbar-brand img {
    transition: var(--transition-base);
    background-color: white;
    border-radius: 4px;
    padding: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar-brand:hover img {
    transform: scale(1.05);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.brand-ngu {
    color: var(--color-primary);
    font-family: var(--font-family-heading);
}

.brand-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-left: var(--spacing-xs);
}

.navbar-nav .nav-link {
    color: var(--color-text-primary) !important;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    transition: var(--transition-base);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--color-primary) !important;
}

.navbar-nav .nav-link.active {
    color: var(--color-primary) !important;
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--spacing-md);
    right: var(--spacing-md);
    height: 3px;
    background-color: var(--color-primary);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    padding: var(--spacing-sm) 0;
}

.dropdown-item {
    padding: var(--spacing-sm) var(--spacing-lg);
    transition: var(--transition-base);
}

.dropdown-item:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 6px;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    text-decoration: underline;
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: white;
}

.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
    text-decoration: underline;
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    text-decoration: underline;
}

.btn-outline-success {
    background-color: transparent;
    border-color: var(--color-success);
    color: var(--color-success);
}

.btn-outline-success:hover {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: white;
    text-decoration: underline;
}

.btn-outline-secondary {
    background-color: transparent;
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-outline-secondary:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: white;
    text-decoration: underline;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

/* Button-Klassen für die vier Hauptfarben des NGÜ-Designs */

/* Red/NGÜ Buttons */
.btn-red {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}
.btn-red:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: white;
    text-decoration: underline;
    box-shadow: var(--shadow-md);
}
.btn-outline-red {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.btn-outline-red:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    text-decoration: underline;
}

/* Blue Buttons */
.btn-blue {
    background-color: var(--color-info);
    border-color: var(--color-info);
    color: white;
}
.btn-blue:hover {
    background-color: var(--color-info-hover);
    border-color: var(--color-info-hover);
    color: white;
    text-decoration: underline;
    box-shadow: var(--shadow-md);
}
.btn-outline-blue {
    background-color: transparent;
    border-color: var(--color-info);
    color: var(--color-info);
}
.btn-outline-blue:hover {
    background-color: var(--color-info);
    border-color: var(--color-info);
    color: white;
    text-decoration: underline;
}

/* Green Buttons */
.btn-green {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: white;
}
.btn-green:hover {
    background-color: var(--color-success-hover);
    border-color: var(--color-success-hover);
    color: white;
    text-decoration: underline;
    box-shadow: var(--shadow-md);
}
.btn-outline-green {
    background-color: transparent;
    border-color: var(--color-success);
    color: var(--color-success);
}
.btn-outline-green:hover {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: white;
    text-decoration: underline;
}

/* Orange Buttons */
.btn-orange {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}
.btn-orange:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: white;
    text-decoration: underline;
    box-shadow: var(--shadow-md);
}
.btn-outline-orange {
    background-color: transparent;
    border-color: var(--color-accent);
    color: var(--color-accent);
}
.btn-outline-orange:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    text-decoration: underline;
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    flex: 1;
    padding-top: 80px; /* Account for fixed navbar */
}

.hero-section {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-secondary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   Cards
   ============================================ */

.card {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.card-header {
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-neutral-light);
    padding: var(--spacing-lg);
}

.card-body {
    padding: var(--spacing-lg);
}

.verse-card {
    position: relative;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
}

.verse-card.sponsored {
    opacity: 0.6;
    cursor: not-allowed;
}

.verse-card.sponsored::after {
    content: 'Bereits gesponsert';
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--color-success);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-size: 0.8rem;
}

/* ============================================
   Forms
   ============================================ */

.form-control,
.form-select {
    border: 1px solid var(--color-neutral-light);
    border-radius: 6px;
    padding: var(--spacing-sm) var(--spacing-md);
    transition: var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem var(--color-primary-shadow);
}

.form-label {
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.invalid-feedback {
    color: var(--bs-danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* ============================================
   Alerts
   ============================================ */

.alert {
    border: none;
    border-radius: 8px;
    padding: var(--spacing-md) var(--spacing-lg);
}

.alert-primary {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.alert-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.alert-warning {
    background-color: var(--color-notice);
    color: var(--color-notice-text);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--color-secondary) !important;
    color: var(--color-text-inverse);
    margin-top: auto;
}

.footer h5,
.footer h6 {
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-md);
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-base);
}

.footer a:hover {
    color: var(--color-text-inverse);
    text-decoration: none;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.social-links a:hover {
    background-color: var(--color-primary);
    color: white !important;
}

/* ============================================
   Utilities
   ============================================ */

.text-primary {
    color: var(--color-primary) !important;
}

.text-secondary {
    color: var(--color-text-secondary) !important;
}


.section-padding {
    padding: var(--spacing-xxl) 0;
}

.mb-section {
    margin-bottom: var(--spacing-xxl);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .brand-subtitle {
        display: block;
        margin-left: 0;
        font-size: 0.8rem;
    }
    
    .main-content {
        padding-top: 70px;
    }
    
    .section-padding {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .btn {
        display: block;
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .footer .col-lg-4,
    .footer .col-lg-2 {
        text-align: center;
        margin-bottom: var(--spacing-xl);
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .navbar,
    .footer,
    .btn,
    .alert {
        display: none !important;
    }
    
    .main-content {
        padding-top: 0;
    }
    
    body {
        font-size: 12pt;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}

/* ============================================
   Kostenaufschlüsselung - Farbklassen
   ============================================ */

/* Background-Klassen mit Text-Farbe */
.bg-green {
    background-color: var(--color-success) !important;
    color: white !important;
}

.bg-red {
    background-color: var(--color-primary) !important;
    color: white !important;
}

.bg-ngu-red {
    background-color: var(--color-primary) !important;
    color: white !important;
}

.bg-orange {
    background-color: var(--color-accent) !important;
    color: white !important;
}

.bg-blue {
    background-color: var(--color-info) !important;
    color: white !important;
}

.bg-primary-header {
    background-color: var(--color-primary) !important;
    color: white !important;
}

.bg-rose {
    background-color: var(--color-notice) !important;
    color: var(--color-notice-text) !important;
}

.bg-gray {
    background-color: var(--color-neutral) !important;
    color: white !important;
}

/* Border-Klassen */
.border-green {
    border-color: var(--color-success) !important;
}

.border-red {
    border-color: var(--color-primary) !important;
}

.border-ngu-red {
    border-color: var(--color-primary) !important;
}

.border-rose {
    border-color: var(--color-notice-border) !important;
}

.border-gray {
    border-color: var(--color-neutral) !important;
}

.border-orange {
    border-color: var(--color-accent) !important;
}

.border-blue {
    border-color: var(--color-info) !important;
}

/* Text-Klassen für Icons und Text */
.text-green {
    color: var(--color-success) !important;
}

.text-red {
    color: var(--color-primary) !important;
}

.text-ngu-red {
    color: var(--color-primary) !important;
}

.text-rose {
    color: var(--color-notice-text) !important;
}

.text-gray {
    color: var(--color-neutral) !important;
}

.text-orange {
    color: var(--color-accent) !important;
}

.text-blue {
    color: var(--color-info) !important;
}

/* Dark-Klassen für Footer, Überschriften und Texte */
.bg-dark {
    background-color: var(--color-secondary) !important;
    color: white !important;
}

.border-dark {
    border-color: var(--color-secondary) !important;
}

.text-dark {
    color: var(--color-secondary) !important;
}


/* ============================================
   BOOTSTRAP-KLASSEN ÜBERSCHREIBUNGEN
   (Selektive Anpassung genutzter Klassen)
   ============================================ */

/* SUCCESS - Grün */
.btn-success {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: white;
}
.btn-success:hover {
    background-color: var(--color-success-hover);
    border-color: var(--color-success-hover);
}
.text-success {
    color: var(--color-success) !important;
}
.bg-success {
    background-color: var(--color-success) !important;
    color: white !important;
}
.border-success {
    border-color: var(--color-success) !important;
}

/* DANGER - Rot = Primary */
.btn-danger {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}
.btn-danger:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}
.text-danger {
    color: var(--color-primary) !important;
}
.bg-danger {
    background-color: var(--color-primary) !important;
    color: white !important;
}
.border-danger {
    border-color: var(--color-primary) !important;
}

/* INFO - Blau */
.btn-info {
    background-color: var(--color-info);
    border-color: var(--color-info);
    color: white;
}
.btn-info:hover {
    background-color: var(--color-info-hover);
    border-color: var(--color-info-hover);
}
.text-info {
    color: var(--color-info) !important;
}
.bg-info {
    background-color: var(--color-info) !important;
    color: white !important;
}
.border-info {
    border-color: var(--color-info) !important;
}

/* MUTED - Dunkles Grau für besseren Kontrast */
.text-muted {
    color: var(--color-text-secondary) !important;
}

/* WARNING - Orange für Buttons, Rosé für Alerts */
.btn-warning {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}
.btn-warning:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}
.text-warning {
    color: var(--color-accent) !important;
}
.bg-warning {
    background-color: var(--color-accent) !important;
    color: white !important;
}

/* ALERTS - Info und Warning nutzen beide Rosé (vereinheitlicht) */
.alert-info {
    background-color: var(--color-notice) !important;
    border-color: var(--color-notice-border) !important;
    color: var(--color-notice-text) !important;
}

.alert-warning {
    background-color: var(--color-notice) !important;
    border-color: var(--color-notice-border) !important;
    color: var(--color-notice-text) !important;
}

/* FAQ-Akkordeon mit Rosé-Farbe */
.accordion-button:not(.collapsed) {
    background-color: var(--color-notice) !important;
    border-color: var(--color-notice-border) !important;
    color: var(--color-notice-text) !important;
}

.accordion-button:focus {
    border-color: var(--color-notice-border) !important;
    box-shadow: 0 0 0 0.25rem var(--color-notice-shadow) !important;
}

/* ============================================
   NEW CHECKOUT FLOW - Mobile-First Responsive CSS
   ============================================ */

/* Progressive Disclosure Donation Cards */
.donation-option {
    transition: all 0.3s ease;
    border: 2px solid var(--color-neutral-light);
    cursor: pointer;
}

.donation-option:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px var(--color-primary-shadow);
}

.donation-option.expanded {
    border-color: var(--color-success);
    box-shadow: 0 4px 12px var(--color-success-shadow);
}

.expansion-content {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Success overlay animations */
.success-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.success-overlay.show {
    opacity: 1;
}

.success-content {
    text-align: center;
    animation: bounceIn 0.5s ease;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

/* Enhanced Cart Styling */
.cart-item-card {
    transition: all 0.3s ease;
}

.cart-item-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.remove-item {
    transition: all 0.2s ease;
}

.remove-item:hover {
    transform: scale(1.1);
}

/* Checkout Form Enhancements */
.form-check-input:checked {
    background-color: var(--color-success);
    border-color: var(--color-success);
}

.progress-bar {
    background-color: var(--color-success);
}

/* ============================================
   MOBILE-FIRST RESPONSIVE BREAKPOINTS
   ============================================ */

/* Mobile (default) - 320px and up */
.donation-option .row {
    flex-direction: column;
    text-align: center;
}

.donation-option .col-auto {
    width: 100%;
    margin-top: 1rem;
}

.donation-option .btn {
    width: 100%;
    font-size: 1rem;
    padding: 0.75rem;
}

/* Compact verse preview on mobile */
.verse-preview .card-body {
    padding: 0.75rem !important;
}

.verse-preview h5 {
    font-size: 1rem;
}

.verse-preview p {
    font-size: 0.875rem;
}

/* Cart items mobile layout */
.cart-item-card .row {
    flex-direction: column;
    text-align: center;
}

.cart-item-card .col-auto {
    margin-top: 1rem;
}

/* Sticky summary disabled on mobile */
.sticky-top {
    position: relative !important;
}

/* Mobile form optimizations */
.btn-lg {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
}

.row.mb-3 .col-md-3,
.row.mb-3 .col-md-4,
.row.mb-3 .col-md-5,
.row.mb-3 .col-md-8 {
    margin-bottom: 1rem;
}

/* ============================================
   TABLET AND UP - 768px and up
   ============================================ */
@media (min-width: 768px) {
    /* Donation options horizontal layout */
    .donation-option .row {
        flex-direction: row;
        text-align: left;
    }
    
    .donation-option .col-auto {
        width: auto;
        margin-top: 0;
    }
    
    .donation-option .btn {
        width: auto;
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
    
    /* Cart items horizontal layout */
    .cart-item-card .row {
        flex-direction: row;
        text-align: left;
    }
    
    .cart-item-card .col-auto {
        margin-top: 0;
    }
    
    /* Verse preview normal padding */
    .verse-preview .card-body {
        padding: 1rem !important;
    }
    
    .verse-preview h5 {
        font-size: 1.25rem;
    }
    
    .verse-preview p {
        font-size: 1rem;
    }
    
    /* Form improvements */
    .btn-lg {
        width: auto;
        padding: 0.75rem 1.5rem;
        font-size: 1.125rem;
    }
    
    .row.mb-3 .col-md-3,
    .row.mb-3 .col-md-4,
    .row.mb-3 .col-md-5,
    .row.mb-3 .col-md-8 {
        margin-bottom: 1rem;
    }
}

/* ============================================
   DESKTOP - 992px and up
   ============================================ */
@media (min-width: 992px) {
    /* Enable sticky sidebar */
    .sticky-top {
        position: sticky !important;
        top: 2rem;
    }
    
    /* Larger buttons for better desktop UX */
    .donation-option .btn {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    /* Desktop form layout */
    .row.mb-3 .col-md-3,
    .row.mb-3 .col-md-4,
    .row.mb-3 .col-md-5,
    .row.mb-3 .col-md-8 {
        margin-bottom: 0;
    }
}

/* ============================================
   LARGE DESKTOP - 1200px and up
   ============================================ */
@media (min-width: 1200px) {
    /* Optimized spacing for large screens */
    .container {
        max-width: 1140px;
    }
    
    /* Enhanced card spacing */
    .donation-option,
    .cart-item-card {
        margin-bottom: 1.5rem;
    }
}

/* ============================================
   ACCESSIBILITY AND TOUCH IMPROVEMENTS
   ============================================ */

/* Larger touch targets for mobile */
@media (max-width: 767px) {
    .btn,
    .form-control,
    .form-select {
        min-height: 48px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .form-check-input {
        width: 1.25rem;
        height: 1.25rem;
    }
    
    .form-check-label {
        font-size: 1rem;
        line-height: 1.5;
    }
}

/* Focus states for keyboard navigation */
.donation-option:focus-within {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn:focus,
.form-control:focus,
.form-select:focus {
    box-shadow: 0 0 0 0.25rem var(--color-primary-shadow);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .donation-option {
        border-width: 3px;
    }
    
    .donation-option:hover,
    .donation-option.expanded {
        border-width: 4px;
    }
}