:root {
    --refy-emerald: #10B981;
    --refy-emerald-dark: #047857;
    --refy-emerald-light: #34D399;
    --refy-emerald-container: #064E3B;
    --refy-amber: #F59E0B;
    --refy-amber-dark: #D97706;
    --refy-amber-container: #78350F;
    --refy-blue: #3B82F6;
    --refy-purple: #8B5CF6;
    --bg-dark: #0A0F1D;
    --surface-dark: #111827;
    --surface-elevated: #1E293B;
    --surface-border: #334155;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --error-red: #EF4444;
    --success-green: #22C55E;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    padding-bottom: 90px;
    -webkit-font-smoothing: antialiased;
}

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

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

/* Top App Bar */
.refy-topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(17, 24, 39, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(51, 65, 85, 0.7);
}

.refy-topbar-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand-identity {
    display: flex;
    align-items: center;
    gap: 12px;
}

.emblem-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--refy-emerald), #059669);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
    flex-shrink: 0;
}

.back-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--surface-elevated);
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.back-btn:hover {
    border-color: var(--refy-emerald);
    background: rgba(16, 185, 129, 0.12);
}

.topbar-titles h1 {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-titles p {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.vip-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--refy-amber);
    color: #000;
    font-weight: 900;
    font-size: 0.68rem;
    padding: 2px 8px;
    border-radius: 8px;
    text-transform: uppercase;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-dark);
    padding: 4px;
    border-radius: 14px;
    border: 1px solid var(--surface-border);
}

.desktop-nav-link {
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.desktop-nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.desktop-nav-link.active {
    background: var(--refy-emerald-container);
    color: var(--refy-emerald-light);
    font-weight: 700;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.karma-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--surface-elevated);
    border: 1px solid rgba(245, 158, 11, 0.45);
    padding: 6px 12px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.85rem;
    color: var(--text-primary);
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.karma-pill:hover {
    transform: translateY(-1px);
    border-color: var(--refy-amber);
}

/* Main Container */
.main-container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 20px 20px 40px;
}

.narrow-container {
    max-width: 780px;
    margin: 0 auto;
    padding: 20px 20px 40px;
}

/* Search Bar */
.search-wrapper {
    position: relative;
    margin-bottom: 16px;
}

.search-input {
    width: 100%;
    background: var(--surface-dark);
    border: 1.5px solid var(--surface-border);
    color: var(--text-primary);
    padding: 14px 44px 14px 46px;
    border-radius: 16px;
    font-size: 0.96rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
    border-color: var(--refy-emerald);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.search-clear {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--surface-elevated);
    border: none;
    color: var(--text-secondary);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Category Chips */
.category-chips {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
    margin-bottom: 18px;
    scrollbar-width: none;
}

.category-chips::-webkit-scrollbar {
    display: none;
}

.category-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 999px;
    background: var(--surface-dark);
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    font-size: 0.86rem;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.15s ease;
}

.category-chip:hover {
    border-color: var(--refy-emerald);
    color: var(--text-primary);
}

.category-chip.active {
    background: rgba(16, 185, 129, 0.16);
    border-color: var(--refy-emerald);
    color: var(--refy-emerald-light);
    font-weight: 700;
}

/* Featured Weekly Banner */
.featured-banner {
    display: block;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 60%, #064E3B 100%);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: 22px;
    padding: 22px;
    margin-bottom: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.featured-banner:hover {
    transform: translateY(-2px);
    border-color: var(--refy-emerald);
}

.featured-tags {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.tag-chollo {
    background: var(--refy-amber);
    color: #000;
    font-size: 0.7rem;
    font-weight: 900;
    padding: 3px 9px;
    border-radius: 8px;
    letter-spacing: 0.03em;
}

.tag-sponsored {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.featured-body {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}

.featured-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
}

.featured-desc {
    font-size: 0.88rem;
    color: #CBD5E1;
}

.featured-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--refy-emerald);
    color: #fff;
    font-weight: 700;
    font-size: 0.84rem;
    padding: 8px 14px;
    border-radius: 10px;
}

/* Fair Promise Card */
.promise-card {
    background: rgba(30, 41, 59, 0.65);
    border: 1px solid var(--surface-border);
    border-radius: 16px;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

.promise-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--refy-emerald-container);
    color: var(--refy-emerald);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

/* Brands Grid */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.section-header h2 {
    font-size: 1.08rem;
    font-weight: 800;
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
}

.brand-card {
    background: var(--surface-elevated);
    border: 1px solid var(--surface-border);
    border-radius: 18px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.brand-card:hover {
    transform: translateY(-2px);
    border-color: var(--refy-emerald);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.brand-card-top {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Official Brand Logo Component */
.brand-logo-box {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: #ffffff;
    border: 2px solid rgba(16, 185, 129, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
}

.brand-logo-box img {
    width: 72%;
    height: 72%;
    object-fit: contain;
}

.brand-logo-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 900;
    font-size: 1rem;
}

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

.brand-card-name {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.verified-check {
    color: var(--refy-emerald);
    font-size: 0.9rem;
}

.brand-card-cat {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.brand-benefit-pill {
    background: rgba(6, 78, 59, 0.75);
    border: 1px solid rgba(16, 185, 129, 0.35);
    color: #A7F3D0;
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 0.84rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
}

.brand-reward-summary {
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Cards & Surfaces */
.refy-card {
    background: var(--surface-elevated);
    border: 1px solid var(--surface-border);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 16px;
}

.refy-card-dark {
    background: var(--surface-dark);
    border: 1px solid var(--surface-border);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 16px;
}

/* Brand Detail Rewards Breakdown */
.rewards-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 14px;
}

.reward-box-emerald {
    background: rgba(16, 185, 129, 0.14);
    border: 1px solid rgba(16, 185, 129, 0.35);
    border-radius: 14px;
    padding: 12px;
}

.reward-box-amber {
    background: rgba(245, 158, 11, 0.14);
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: 14px;
    padding: 12px;
}

/* Roulette Card */
.roulette-card {
    background: var(--surface-dark);
    border: 1px solid var(--surface-border);
    border-radius: 24px;
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.roulette-code-box {
    border-radius: 18px;
    padding: 20px;
    background: var(--surface-elevated);
    border: 2px solid transparent;
    background-image: linear-gradient(var(--surface-elevated), var(--surface-elevated)), linear-gradient(90deg, var(--refy-emerald), var(--refy-amber));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    text-align: center;
    margin: 14px 0;
}

.code-monospace {
    font-family: "JetBrains Mono", "Fira Code", Consolas, monospace;
    font-size: 1.35rem;
    font-weight: 800;
    color: #fff;
    word-break: break-all;
    margin: 10px 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.92rem;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}

.btn-emerald {
    background: var(--refy-emerald);
    color: #fff;
}

.btn-emerald:hover {
    background: var(--refy-emerald-dark);
}

.btn-amber {
    background: var(--refy-amber);
    color: #000;
}

.btn-amber:hover {
    background: var(--refy-amber-dark);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--surface-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--refy-emerald);
    background: rgba(16, 185, 129, 0.08);
}

.btn-full {
    width: 100%;
}

/* Steps */
.step-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
}

.step-circle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--refy-emerald);
    color: #fff;
    font-weight: 800;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Progress Bar */
.progress-track {
    width: 100%;
    height: 8px;
    background: var(--bg-dark);
    border-radius: 999px;
    overflow: hidden;
    margin: 10px 0;
}

.progress-fill {
    height: 100%;
    background: var(--refy-emerald);
    border-radius: 999px;
    transition: width 0.3s ease;
}

/* Boost Grid */
.boost-options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 12px;
}

.boost-option-card {
    background: var(--surface-dark);
    border-radius: 14px;
    padding: 14px;
    cursor: pointer;
    transition: transform 0.15s ease;
}

.boost-option-card:hover {
    transform: translateY(-2px);
}

/* Bottom Navigation (Mobile) */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(17, 24, 39, 0.96);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--surface-border);
    display: none;
    justify-content: space-around;
    padding: 8px 12px;
    z-index: 45;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 10px;
}

.mobile-nav-item.active {
    color: var(--refy-emerald);
}

/* Floating Action Button */
.refy-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--refy-emerald);
    color: #fff;
    padding: 14px 20px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.92rem;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
    cursor: pointer;
    border: none;
    z-index: 42;
    transition: transform 0.15s ease, background 0.15s ease;
}

.refy-fab:hover {
    transform: translateY(-2px);
    background: var(--refy-emerald-dark);
}

/* Modals */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    z-index: 100;
}

.modal-backdrop.open {
    display: flex;
}

.modal-panel {
    background: var(--surface-dark);
    border: 1px solid var(--surface-border);
    border-radius: 24px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

/* Form Controls */
.form-label {
    display: block;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    background: var(--surface-elevated);
    border: 1.5px solid var(--surface-border);
    color: var(--text-primary);
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 0.92rem;
    outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--refy-emerald);
}

/* Toast Notification */
.refy-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(120px);
    background: #0F172A;
    color: #fff;
    border: 1.5px solid var(--refy-emerald);
    padding: 12px 20px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
    z-index: 120;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 92vw;
    text-align: center;
}

.refy-toast.visible {
    transform: translateX(-50%) translateY(0);
}

@keyframes spin360 {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spinning {
    animation: spin360 0.5s linear infinite;
}

@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    .mobile-bottom-nav {
        display: flex;
    }
    .refy-fab {
        bottom: 76px;
        right: 16px;
    }
    .rewards-split, .boost-options-grid {
        grid-template-columns: 1fr;
    }
    .brands-grid {
        grid-template-columns: 1fr;
    }
}