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

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #0d1321;
    --bg-card: #131722;
    --bg-card-hover: #1a1f2e;
    --bg-input: #0e1525;
    --border: #1e2533;
    --border-hover: #2a3344;
    --text-primary: #e1e4ea;
    --text-secondary: #8a8f9d;
    --text-muted: #555b6e;
    --green: #00c853;
    --green-dim: rgba(0, 200, 83, 0.15);
    --green-glow: rgba(0, 200, 83, 0.4);
    --red: #ff1744;
    --red-dim: rgba(255, 23, 68, 0.15);
    --red-glow: rgba(255, 23, 68, 0.4);
    --orange: #ff9100;
    --orange-dim: rgba(255, 145, 0, 0.15);
    --blue: #2962ff;
    --blue-dim: rgba(41, 98, 255, 0.12);
    --blue-glow: rgba(41, 98, 255, 0.3);
    --gradient: linear-gradient(135deg, #00c853, #2962ff);
    --gradient-warm: linear-gradient(135deg, #ff9100, #ff1744);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ===== BACKGROUND EFFECTS ===== */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(41, 98, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(41, 98, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 {
    width: 600px;
    height: 600px;
    background: rgba(41, 98, 255, 0.08);
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.bg-glow-2 {
    width: 500px;
    height: 500px;
    background: rgba(0, 200, 83, 0.06);
    bottom: -200px;
    left: -100px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -30px); }
    66% { transform: translate(-20px, 20px); }
}

/* ===== LOGIN SCREEN ===== */
.login-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.login-screen.hidden {
    opacity: 0;
    transform: scale(1.02);
    pointer-events: none;
}

.login-card {
    text-align: center;
    padding: 48px 40px;
    background: rgba(19, 23, 34, 0.8);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    max-width: 420px;
    width: 90%;
    animation: loginAppear 0.6s ease-out;
}

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

.login-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo-icon-lg {
    width: 56px;
    height: 56px;
    padding: 10px;
}

.login-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.login-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 28px;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.google-btn-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    min-height: 44px;
}

.login-terms {
    color: var(--text-muted);
    font-size: 0.72rem;
    line-height: 1.5;
}

/* ===== HEADER ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 23, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--blue-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-ai {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* User Profile */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--border);
    object-fit: cover;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.btn-logout {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.btn-logout:hover {
    border-color: var(--red);
    color: var(--red);
    background: var(--red-dim);
}

/* ===== MAIN ===== */
.main {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

/* ===== HERO ===== */
.hero {
    text-align: center;
    padding: 60px 0 40px;
}

.hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

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

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== UPLOAD SECTION ===== */
.upload-section {
    margin-bottom: 40px;
}

.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
    position: relative;
}

.upload-zone:hover {
    border-color: var(--blue);
    background: rgba(41, 98, 255, 0.04);
}

.upload-zone.dragging {
    border-color: var(--green);
    background: rgba(0, 200, 83, 0.04);
    transform: scale(1.01);
}

.upload-zone.has-image {
    border-style: solid;
    border-color: var(--border);
    cursor: default;
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px 20px;
    gap: 8px;
}

.upload-icon {
    width: 72px;
    height: 72px;
    background: var(--blue-dim);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue);
    margin-bottom: 8px;
    animation: pulse-soft 3s ease-in-out infinite;
}

@keyframes pulse-soft {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(41, 98, 255, 0.2); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(41, 98, 255, 0); }
}

.upload-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

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

.upload-formats {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.upload-preview {
    position: relative;
    width: 100%;
}

.upload-preview img {
    width: 100%;
    max-height: 450px;
    object-fit: contain;
    display: block;
    background: #0a0c12;
}

.btn-remove {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-remove:hover {
    background: var(--red-dim);
    border-color: var(--red);
    color: var(--red);
}

.btn-analyze {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 16px;
    padding: 15px 24px;
    background: var(--gradient);
    border: none;
    border-radius: var(--radius);
    color: white;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-analyze::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: 0.6s;
}

.btn-analyze:not(:disabled):hover::before {
    transform: translateX(100%);
}

.btn-analyze:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(41, 98, 255, 0.3);
}

.btn-analyze:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-text, .btn-loading {
    display: flex;
    align-items: center;
    gap: 8px;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== RESULTS ===== */
.results-section {
    animation: fadeUp 0.6s ease-out;
}

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

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.results-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
}

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

/* Signal Card */
.signal-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 20px;
    transition: var(--transition);
}

.signal-card.buy {
    border-color: rgba(0, 200, 83, 0.3);
    box-shadow: 0 0 40px rgba(0, 200, 83, 0.08);
}

.signal-card.sell {
    border-color: rgba(255, 23, 68, 0.3);
    box-shadow: 0 0 40px rgba(255, 23, 68, 0.08);
}

.signal-card.hold {
    border-color: rgba(255, 145, 0, 0.3);
    box-shadow: 0 0 40px rgba(255, 145, 0, 0.08);
}

.signal-main {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.signal-badge {
    padding: 10px 28px;
    border-radius: var(--radius);
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 2px;
    animation: glow-pulse 2s ease-in-out infinite;
}

.signal-card.buy .signal-badge {
    background: var(--green-dim);
    color: var(--green);
    text-shadow: 0 0 20px var(--green-glow);
}

.signal-card.sell .signal-badge {
    background: var(--red-dim);
    color: var(--red);
    text-shadow: 0 0 20px var(--red-glow);
}

.signal-card.hold .signal-badge {
    background: var(--orange-dim);
    color: var(--orange);
}

@keyframes glow-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.signal-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.signal-pair {
    font-size: 1.1rem;
    font-weight: 600;
}

.signal-metrics {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.metric {
    flex: 1;
    min-width: 150px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-bar {
    height: 6px;
    background: var(--bg-input);
    border-radius: 10px;
    overflow: hidden;
}

.metric-fill {
    height: 100%;
    border-radius: 10px;
    background: var(--gradient);
    transition: width 1s ease-out;
    width: 0%;
}

.metric-value {
    font-size: 0.95rem;
    font-weight: 600;
}

.risk-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    width: fit-content;
}

.risk-badge.low {
    background: var(--green-dim);
    color: var(--green);
}

.risk-badge.medium {
    background: var(--orange-dim);
    color: var(--orange);
}

.risk-badge.high {
    background: var(--red-dim);
    color: var(--red);
}

/* Analysis Grid */
.analysis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.analysis-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: var(--transition);
}

.analysis-card:hover {
    border-color: var(--border-hover);
}

.analysis-card.full-width {
    grid-column: 1 / -1;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.card-icon {
    font-size: 1.1rem;
}

.card-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

.card-body {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.card-body p {
    margin-bottom: 8px;
}

.card-body ul {
    list-style: none;
    padding: 0;
}

.card-body ul li {
    padding: 4px 0;
    padding-left: 18px;
    position: relative;
}

.card-body ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--blue);
}

/* Levels Grid */
.levels-grid {
    display: grid;
    gap: 10px;
}

.level-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--bg-input);
    border-radius: 8px;
}

.level-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.level-value {
    font-weight: 700;
    font-size: 0.95rem;
    font-family: 'Inter', monospace;
}

.level-value.green { color: var(--green); }
.level-value.red { color: var(--red); }
.level-value.blue { color: #5b8aff; }

/* ===== HISTORY ===== */
.history-section {
    margin-top: 50px;
}

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

.history-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
}

.btn-clear-history {
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-clear-history:hover {
    border-color: var(--red);
    color: var(--red);
    background: var(--red-dim);
}

.history-list {
    display: grid;
    gap: 10px;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.history-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.history-signal {
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    min-width: 55px;
    text-align: center;
}

.history-signal.buy { background: var(--green-dim); color: var(--green); }
.history-signal.sell { background: var(--red-dim); color: var(--red); }
.history-signal.hold { background: var(--orange-dim); color: var(--orange); }

.history-info {
    flex: 1;
}

.history-pair {
    font-weight: 600;
    font-size: 0.9rem;
}

.history-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.history-confidence {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hero {
        padding: 40px 0 30px;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .analysis-grid {
        grid-template-columns: 1fr;
    }

    .signal-metrics {
        flex-direction: column;
        gap: 16px;
    }

    .upload-content {
        padding: 35px 16px;
    }

    .user-name {
        display: none;
    }

    .login-card {
        padding: 32px 24px;
    }
}

/* ===== PRICING BUTTON & USAGE ===== */
.btn-pricing {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.82rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-pricing:hover {
    border-color: var(--blue);
    background: var(--blue-dim);
}

.plan-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plan-badge.free {
    background: var(--blue-dim);
    color: #5b8aff;
}

.plan-badge.premium {
    background: linear-gradient(135deg, rgba(255, 145, 0, 0.2), rgba(255, 23, 68, 0.2));
    color: var(--orange);
}

.usage-counter {
    padding: 4px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.usage-counter.low {
    border-color: rgba(255, 145, 0, 0.3);
    color: var(--orange);
}

.usage-counter.empty {
    border-color: rgba(255, 23, 68, 0.3);
    color: var(--red);
}

/* ===== PRICING MODAL ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    padding: 20px;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.pricing-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px;
    max-width: 720px;
    width: 100%;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.show .pricing-modal {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 6px;
}

.pricing-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 28px;
}

.pricing-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    transition: var(--transition);
}

.pricing-card.premium {
    border-color: rgba(41, 98, 255, 0.4);
    background: linear-gradient(180deg, rgba(41, 98, 255, 0.06) 0%, var(--bg-card) 100%);
    box-shadow: 0 0 40px rgba(41, 98, 255, 0.08);
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 14px;
    background: var(--gradient);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.pricing-plan-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    margin-top: 4px;
}

.pricing-price {
    margin-bottom: 20px;
}

.price-amount {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.price-period {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 24px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 0.85rem;
}

.pricing-features li.included {
    color: var(--text-secondary);
}

.pricing-features li.included svg {
    color: var(--green);
    flex-shrink: 0;
}

.pricing-features li.excluded {
    color: var(--text-muted);
}

.pricing-features li.excluded svg {
    color: var(--text-muted);
    opacity: 0.5;
    flex-shrink: 0;
}

.btn-plan {
    width: 100%;
    padding: 11px;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-plan.current {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: default;
}

.btn-plan.upgrade {
    background: var(--gradient);
    border: none;
    color: white;
}

.btn-plan.upgrade:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(41, 98, 255, 0.3);
}

/* ===== CHECKOUT MODAL ===== */
.checkout-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 440px;
    width: 100%;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.show .checkout-modal {
    transform: translateY(0) scale(1);
}

.checkout-header {
    margin-bottom: 24px;
    text-align: center;
}

.checkout-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 4px;
}

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

.checkout-form .form-group {
    margin-bottom: 16px;
}

.checkout-form label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.checkout-form input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.checkout-form input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px var(--blue-dim);
}

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

.card-input-wrapper {
    position: relative;
    margin-bottom: 10px;
}

.card-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.card-number {
    padding-left: 44px !important;
    font-family: 'Inter', monospace !important;
    letter-spacing: 1px;
}

.card-details-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.btn-pay {
    width: 100%;
    padding: 14px;
    background: var(--gradient);
    border: none;
    border-radius: 8px;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 24px;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn-pay:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(41, 98, 255, 0.3);
}

.btn-pay:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.secure-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 16px;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== SELECTION ===== */
::selection {
    background: rgba(41, 98, 255, 0.3);
    color: white;
}

/* ===== RESPONSIVE PRICING ===== */
@media (max-width: 768px) {
    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .pricing-modal {
        padding: 24px;
    }

    .usage-counter {
        display: none;
    }
}