/* ===== CSS Variables ===== */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fc;
    --bg-tertiary: #f0f2f5;
    --bg-card: rgba(255, 255, 255, 0.9);

    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;

    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --accent-primary: #6366f1;
    --accent-secondary: #a855f7;

    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;

    --border-color: rgba(0, 0, 0, 0.08);
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1,
h2,
h3 {
    font-weight: 600;
    line-height: 1.2;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* ===== Options Section ===== */
.options-section {
    padding: 0 0 32px;
}

.options-bar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.option-select {
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.option-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.option-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch .slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: var(--bg-tertiary);
    transition: .4s;
    border-radius: 24px;
    border: 1px solid var(--border-color);
}

.toggle-switch .slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked+.slider {
    background: var(--accent-gradient);
}

.toggle-switch input:checked+.slider:before {
    transform: translateX(20px);
}

/* Color Picker & Range */
input[type="color"] {
    -webkit-appearance: none;
    appearance: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    background: none;
    padding: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 2px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 1px var(--border-color);
}

input[type="color"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

input[type="range"] {
    flex: 1;
    min-width: 80px;
    accent-color: var(--accent-primary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    text-transform: none !important;
}

.checkbox-label input {
    accent-color: var(--accent-primary);
    width: 16px;
    height: 16px;
}

/* ===== Upload Zone ===== */
.upload-section {
    padding: 0 0 80px;
    position: relative;
    z-index: 1;
}

.upload-zone {
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 64px 32px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.upload-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.upload-zone.drag-over::before {
    opacity: 0.05;
}

.upload-content {
    position: relative;
    z-index: 1;
}

.upload-icon {
    color: var(--text-muted);
    margin-bottom: 24px;
    transition: transform var(--transition-normal);
}

.upload-zone:hover .upload-icon {
    transform: translateY(-4px);
}

.upload-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.upload-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 100px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 30px rgba(99, 102, 241, 0.3);
}

/* ===== Queue Section ===== */
.queue-section {
    padding: 0 0 80px;
    display: none;
}

.queue-section.active {
    display: block;
}

.queue-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.queue-title {
    font-size: 1.5rem;
}

.queue-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.queue-count {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover:not(:disabled) {
    border-color: var(--text-muted);
    color: var(--text-primary);
}

/* Queue Grid */
.queue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

/* Image Card */
.image-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.image-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-md);
}

.image-preview {
    position: relative;
    aspect-ratio: 4/3;
    background: var(--bg-tertiary);
    background-image:
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
    overflow: hidden;
    cursor: pointer;
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.image-preview .processing-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.processing-text {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.image-info {
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.image-name {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

.image-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-badge {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 100px;
}

.status-badge.pending {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.status-badge.processing {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-primary);
}

.status-badge.complete {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.status-badge.error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.card-actions {
    display: flex;
    gap: 8px;
}

.card-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.card-btn:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.card-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ===== Features Section ===== */
.features-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== How Section ===== */
.how-section {
    padding: 80px 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.step-card {
    text-align: center;
    position: relative;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 auto 20px;
}

.step-card h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

/* Preview Comparison */
.preview-container {
    padding: 24px;
}

.preview-comparison {
    position: relative;
    aspect-ratio: 16/10;
    background: var(--bg-tertiary);
    background-image:
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: ew-resize;
}

.preview-before,
.preview-after {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-before img,
.preview-after img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-before {
    clip-path: inset(0 50% 0 0);
}

.preview-label {
    position: absolute;
    bottom: 16px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.preview-before .preview-label {
    left: 16px;
}

.preview-after .preview-label {
    right: 16px;
}

.preview-slider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: white;
    transform: translateX(-50%);
    cursor: ew-resize;
}

.slider-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

.modal-actions {
    padding: 16px 24px 24px;
    display: flex;
    justify-content: center;
}

/* ===== Footer ===== */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.125rem;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero {
        padding: 140px 0 60px;
    }

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

    .upload-zone {
        padding: 48px 24px;
    }

    .queue-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .queue-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .nav {
        display: none;
    }

    .preview-comparison {
        aspect-ratio: 1;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.image-card {
    animation: fadeIn 0.3s ease forwards;
}

/* ===== Progress Bar ===== */
.progress-container {
    width: 80%;
    max-width: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--accent-gradient);
    width: 0%;
    transition: width 0.2s ease;
    border-radius: 4px;
    position: relative;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.3) 50%,
            transparent 100%);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

.progress-percent {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.processing-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
}

/* ===== Usage Counter & Premium Button ===== */
.usage-counter {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

.usage-counter.premium {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.15));
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.usage-counter.exhausted {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border-color: var(--error);
}

.btn-upgrade {
    padding: 8px 16px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-upgrade:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

/* ===== Upgrade Modal ===== */
.upgrade-modal .upgrade-content {
    max-width: 440px;
    padding: 40px;
    text-align: center;
}

.upgrade-header {
    margin-bottom: 32px;
}

.upgrade-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
}

.upgrade-header h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.upgrade-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.upgrade-features {
    text-align: left;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.feature-item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.feature-check {
    color: var(--success);
    font-weight: bold;
}

.upgrade-pricing {
    margin-bottom: 24px;
}

.price-tag {
    display: inline-block;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.period {
    color: var(--text-muted);
    font-size: 1rem;
}

.upgrade-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.upgrade-actions .upgrade-btn {
    padding: 16px 32px;
    font-size: 1rem;
}

.upgrade-note {
    margin-top: 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Tier Selection Grid ===== */
.tier-selection {
    max-width: 900px;
    padding: 32px;
}

.tier-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.tier-card {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px 16px;
    text-align: center;
    transition: all var(--transition-normal);
}

.tier-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tier-card.current {
    border-color: var(--success);
    background: rgba(34, 197, 94, 0.05);
}

.tier-card.recommended {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(168, 85, 247, 0.05));
}

.tier-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gradient);
    color: white;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tier-card .tier-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.tier-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.tier-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.tier-price span {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-muted);
}

.tier-features {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    text-align: left;
    font-size: 0.85rem;
}

.tier-features li {
    padding: 6px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.tier-features li:last-child {
    border-bottom: none;
}

.tier-card .btn {
    width: 100%;
    padding: 10px;
    font-size: 0.85rem;
}

/* Responsive tier grid */
@media (max-width: 768px) {
    .tier-selection {
        max-width: 100%;
        padding: 20px;
    }

    .tier-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .tier-card {
        padding: 16px 12px;
    }

    .tier-price {
        font-size: 1.2rem;
    }

    .tier-features {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .tier-grid {
        grid-template-columns: 1fr;
    }
}