/* ==========================================================================
   Love Coupons - Standalone PWA Design System
   ========================================================================== */

:root {
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Default Accent Color Palette (Rose) */
    --accent-main: #b83280;
    --accent-strong: #8a1f5e;
    --accent-soft: #fdf2f8;
    --accent-contrast: #ffffff;

    --bg-app: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* Color Palette Themes */
[data-theme="rose"] {
    --accent-main: #b83280;
    --accent-strong: #8a1f5e;
    --accent-soft: #fdf2f8;
}
[data-theme="sunset"] {
    --accent-main: #d9480f;
    --accent-strong: #a63205;
    --accent-soft: #fff4e6;
}
[data-theme="gold"] {
    --accent-main: #c58a00;
    --accent-strong: #966700;
    --accent-soft: #fff9db;
}
[data-theme="ocean"] {
    --accent-main: #155b9a;
    --accent-strong: #0d3c68;
    --accent-soft: #e7f5ff;
}
[data-theme="forest"] {
    --accent-main: #2c6e49;
    --accent-strong: #1b452e;
    --accent-soft: #ebfbee;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-app);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
}

.app-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--bg-card);
    position: relative;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
}

.dashboard-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    flex: 1;
}

/* ==========================================================================
   AUTH SCREEN
   ========================================================================== */

.auth-screen {
    padding: 2rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--accent-soft) 0%, #ffffff 100%);
}

.auth-card {
    width: 100%;
    text-align: center;
}

.auth-brand {
    margin-bottom: 2rem;
}

.auth-logo {
    width: 72px;
    height: 72px;
    margin-bottom: 0.75rem;
    animation: floatLogo 3s ease-in-out infinite;
}

@keyframes floatLogo {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.auth-brand h1 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-main);
}

.auth-tagline {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.auth-form {
    background: #ffffff;
    padding: 1.75rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: left;
    border: 1px solid var(--border-color);
}

.auth-form h2 {
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
    color: var(--text-main);
    font-weight: 600;
}

.auth-toggle {
    margin-top: 1.25rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-toggle a {
    color: var(--accent-main);
    font-weight: 600;
    text-decoration: none;
}

/* ==========================================================================
   HEADER BAR
   ========================================================================== */

.app-header {
    background: var(--accent-strong);
    color: var(--accent-contrast);
    padding: 0.85rem 1.25rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    transition: background 0.3s ease;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.header-logo-badge {
    background: #ffffff;
    padding: 4px 6px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.header-logo {
    width: 28px;
    height: 28px;
    display: block;
}

.header-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
}

.desktop-header-nav {
    display: none;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.8);
}

.user-greeting {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ==========================================================================
   MAIN VIEWS & NAVIGATION
   ========================================================================== */

.main-content {
    flex: 1;
    padding: 1.25rem;
    padding-bottom: 5rem;
    overflow-y: auto;
}

.app-view {
    display: none;
}

.app-view.active {
    display: block;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.view-header {
    margin-bottom: 1.25rem;
}

.view-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

/* Feed Tabs */
.feed-tabs {
    display: flex;
    background: var(--bg-app);
    padding: 4px;
    border-radius: var(--radius-md);
    gap: 4px;
}

.tab-btn {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.6rem 1rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: #ffffff;
    color: var(--accent-main);
    box-shadow: var(--shadow-sm);
}

/* Status Filter Chips */
.status-filters {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
    overflow-x: auto;
    padding-bottom: 4px;
}

.filter-chip {
    border: 1px solid var(--border-color);
    background: #ffffff;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.filter-chip.active {
    background: var(--accent-main);
    color: var(--accent-contrast);
    border-color: var(--accent-main);
}

/* ==========================================================================
   COUPON CARDS GRID & CARDS
   ========================================================================== */

.coupons-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.coupon-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}

.coupon-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.coupon-card-header {
    background: linear-gradient(135deg, var(--accent-main) 0%, var(--accent-strong) 100%);
    color: var(--accent-contrast);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.coupon-card-icon {
    font-size: 2rem;
}

.coupon-badge {
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-available { background: #10b981; color: #ffffff; }
.badge-redeemed { background: #64748b; color: #ffffff; }
.badge-expired { background: #ef4444; color: #ffffff; }
.badge-scheduled { background: #f59e0b; color: #ffffff; }

.coupon-card-body {
    padding: 1.25rem;
}

.coupon-card-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.coupon-card-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-strong);
}

.expires-pill {
    display: inline-block;
    background: #f1f5f9;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.uses-left-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}

/* Accordion Box matching PDF */
.terms-accordion {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.terms-accordion-header {
    background: #f1f5f9;
    padding: 0.6rem 0.85rem;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
    cursor: pointer;
    user-select: none;
    list-style: none;
}

.terms-accordion-header::-webkit-details-marker {
    display: none;
}

.terms-accordion-body {
    padding: 0.85rem;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
    border-top: 1px solid var(--border-color);
}

.coupon-cover-img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.coupon-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--border-color);
}

.coupon-user-info {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.user-avatar-xs {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

/* ==========================================================================
   BUTTONS & FORMS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-main);
    color: var(--accent-contrast);
}

.btn-primary:hover {
    background: var(--accent-strong);
}

.btn-secondary {
    background: #0f172a;
    color: #ffffff;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-danger {
    background: #ef4444;
    color: #ffffff;
}

.btn-block { width: 100%; }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.85rem; }
.btn-lg { padding: 1rem 1.5rem; font-size: 1.05rem; }

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-main);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: #ffffff;
    color: var(--text-main);
    transition: border-color 0.2s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-main);
}

.form-row {
    display: flex;
    gap: 0.75rem;
}

.col-half { flex: 1; }

.form-error {
    background: #fef2f2;
    color: #b91c1c;
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid #fecaca;
}

.card-box {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.25rem;
}

.card-box h2 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.section-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1.5rem 0;
}

/* Icon Preset Chips */
.icon-presets {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.icon-chip {
    padding: 0.5rem 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    cursor: pointer;
    background: #ffffff;
}

.icon-chip input { display: none; }

.icon-chip.active {
    border-color: var(--accent-main);
    background: var(--accent-soft);
    font-weight: 600;
}

/* Avatar Uploader */
.avatar-upload-section {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.avatar-preview-wrapper img {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--accent-main);
}

/* Accent Picker Options */
.accent-picker {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.accent-option {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: #ffffff;
}

.accent-option input { display: none; }

.accent-rose { background: #b83280; }
.accent-sunset { background: #d9480f; }
.accent-gold { background: #c58a00; }
.accent-ocean { background: #155b9a; }
.accent-forest { background: #2c6e49; }

/* Users Grid */
.users-list-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.user-item-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.user-item-card img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.user-item-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.user-item-email {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==========================================================================
   BOTTOM MOBILE NAVIGATION BAR
   ========================================================================== */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 600px;
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    display: flex;
    height: 60px;
    z-index: 100;
}

.nav-item {
    flex: 1;
    border: none;
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s ease;
}

.nav-item i {
    font-size: 1.2rem;
}

.nav-item.active {
    color: var(--accent-main);
}

/* ==========================================================================
   MODAL DIALOG
   ========================================================================== */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1.5rem;
}

.modal-card {
    background: #ffffff;
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    animation: modalSlide 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-header {
    text-align: center;
    margin-bottom: 1rem;
}

.modal-badge-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
}

.modal-terms {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    text-align: center;
}

.modal-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.75rem;
    background: var(--bg-app);
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

/* ==========================================================================
   DESKTOP RESPONSIVE LAYOUT ENHANCEMENTS
   ========================================================================== */
@media (min-width: 768px) {
    .app-container {
        max-width: 1100px;
        margin: 2rem auto;
        min-height: calc(100vh - 4rem);
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }

    .desktop-header-nav {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .desktop-header-nav .nav-item {
        flex-direction: row;
        color: rgba(255, 255, 255, 0.85);
        padding: 0.5rem 1rem;
        border-radius: var(--radius-md);
        font-size: 0.95rem;
        font-weight: 600;
        gap: 0.5rem;
        background: transparent;
        border: none;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .desktop-header-nav .nav-item i {
        font-size: 1rem;
    }

    .desktop-header-nav .nav-item:hover,
    .desktop-header-nav .nav-item.active {
        background: rgba(255, 255, 255, 0.2);
        color: #ffffff;
    }

    .bottom-nav {
        display: none !important;
    }

    .main-content {
        padding: 2rem;
        padding-bottom: 2rem;
    }

    .coupons-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 1.5rem;
    }
}