/* ArtMotionly v1.6 – Core styles */

/* Variables */
:root {
    --bg-body: #050816;
    --bg-elevated: #0b1020;
    --bg-soft: #111827;
    --accent: #22d3ee;
    --accent-soft: rgba(34, 211, 238, 0.1);
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --border-subtle: #1f2933;
    --danger: #ef4444;

    --radius-lg: 18px;
    --radius-full: 999px;
    --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);

    --container-width: 1100px;
    --transition-fast: 0.18s ease-out;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #0b1020 0, #020617 55%, #000 100%);
    color: var(--text-main);
    line-height: 1.7;
}

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

img {
    max-width: 100%;
    display: block;
    border-radius: 14px;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

/* Header & nav */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(to bottom, rgba(5, 8, 22, 0.96), rgba(5, 8, 22, 0.85));
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-width);
    margin-inline: auto;
    padding: 0.7rem 1.5rem;
    gap: 1rem;
}

.logo h1 {
    margin: 0;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.logo-subtitle {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.1rem;
}

.version-badge {
    font-size: 0.7rem;
    padding: 1px 8px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(148, 163, 184, 0.7);
    color: var(--accent);
    background: radial-gradient(circle at top left, rgba(34, 211, 238, 0.18), transparent 55%);
}

.nav-toggle {
    display: none;
    font-size: 1.4rem;
    background: transparent;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}

/* Nav links */
.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.3rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    font-size: 0.95rem;
    color: var(--text-muted);
    padding: 0.35rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    bottom: -4px;
    height: 2px;
    border-radius: 999px;
    transform: scaleX(0);
    transform-origin: center;
    background: linear-gradient(to right, #22d3ee, #38bdf8);
    transition: transform var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text-main);
}

.nav-links a.active {
    color: #e5e7eb;
    font-weight: 500;
}

.nav-links a.active::after {
    transform: scaleX(1);
}

/* Hero */
.hero {
    padding: 3.5rem 0 3rem;
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.4fr);
    gap: 2.5rem;
    align-items: stretch;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 0.85rem;
}

.hero-content p {
    color: var(--text-muted);
    margin-bottom: 1.2rem;
}

.hero-note {
    font-size: 0.8rem;
    color: #9ca3af;
    margin-top: 1rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.cta-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.4rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.cta-button {
    background: linear-gradient(135deg, #22d3ee, #38bdf8);
    color: #020617;
    box-shadow: 0 14px 35px rgba(56, 189, 248, 0.35);
}

.cta-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 40px rgba(56, 189, 248, 0.45);
}

.secondary-button {
    background: transparent;
    border-color: rgba(148, 163, 184, 0.5);
    color: var(--text-main);
}

.secondary-button:hover {
    border-color: var(--accent);
    background: rgba(15, 23, 42, 0.85);
}

/* Hero side card */
.hero-side-card {
    background: radial-gradient(circle at top, rgba(34, 211, 238, 0.16), rgba(15, 23, 42, 0.95));
    border-radius: 24px;
    padding: 1.5rem 1.4rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(148, 163, 184, 0.3);
}

.hero-side-card h3 {
    margin-top: 0;
    margin-bottom: 0.7rem;
}

.hero-side-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    color: var(--text-muted);
}

.hero-side-card li {
    position: relative;
    padding-inline-start: 1.1rem;
    margin-bottom: 0.55rem;
}

.hero-side-card li::before {
    content: "•";
    position: absolute;
    inset-inline-start: 0;
    color: var(--accent);
}

/* Section headings */
.section-title {
    font-size: 1.4rem;
    margin-bottom: 0.45rem;
}

.section-subtitle {
    margin-top: 0;
    margin-bottom: 1.6rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Reviews */
.reviews {
    padding: 2.5rem 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.8rem;
}

.review-card {
    background: var(--bg-elevated);
    border-radius: 20px;
    padding: 0.9rem;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(31, 41, 55, 0.9);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.review-image {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    margin-bottom: 0.8rem;
}

.review-image img {
    transition: transform 0.35s ease-out;
}

.review-card:hover .review-image img {
    transform: scale(1.05);
}

.review-content h3 {
    margin: 0 0 0.35rem;
    font-size: 1.02rem;
}

.rating {
    font-size: 0.9rem;
    color: #fbbf24;
    margin-bottom: 0.5rem;
}

.review-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.7rem;
}

.review-highlights {
    list-style: none;
    padding: 0;
    margin: 0 0 0.9rem;
    font-size: 0.85rem;
    color: #9ca3af;
}

.review-highlights li {
    position: relative;
    padding-inline-start: 1rem;
    margin-bottom: 0.25rem;
}

.review-highlights li::before {
    content: "›";
    position: absolute;
    inset-inline-start: 0;
    color: var(--accent);
    font-size: 0.9rem;
}

.review-meta {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
}

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

.affiliate-link {
    font-size: 0.85rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    background: var(--accent-soft);
    border: 1px solid rgba(56, 189, 248, 0.5);
    color: #e0f2fe;
    white-space: nowrap;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.affiliate-link:hover {
    background: rgba(34, 211, 238, 0.22);
    transform: translateY(-1px);
}

/* Level badges */
.badge-level {
    position: absolute;
    inset-inline-end: 10px;
    top: 10px;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(148, 163, 184, 0.6);
}

.badge-advanced {
    background: rgba(248, 113, 113, 0.18);
    color: #fecaca;
    border-color: rgba(248, 113, 113, 0.8);
}

.badge-intermediate {
    background: rgba(234, 179, 8, 0.18);
    color: #facc15;
    border-color: rgba(234, 179, 8, 0.8);
}

.badge-beginner {
    background: rgba(34, 197, 94, 0.18);
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, 0.85);
}

/* Categories */
.categories {
    padding: 2.5rem 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.4rem;
}

.category-card {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.9));
    border-radius: 18px;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(30, 64, 175, 0.8);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.8);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 26px 55px rgba(15, 23, 42, 0.95);
    border-color: rgba(56, 189, 248, 0.8);
}

.category-card h3 {
    margin-top: 0;
    margin-bottom: 0.4rem;
}

.category-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Text sections */
.tutorials,
.deals,
.about,
.contact {
    padding: 2.5rem 0;
}

.placeholder-box {
    background: var(--bg-elevated);
    border-radius: 18px;
    padding: 1rem 1.1rem;
    border: 1px dashed rgba(148, 163, 184, 0.5);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.placeholder-box ul {
    margin-top: 0.7rem;
    padding-left: 1.2rem;
}

.about-text {
    max-width: 700px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Contact form */
.contact-form {
    max-width: 550px;
    margin-top: 1.4rem;
    background: var(--bg-elevated);
    border-radius: 20px;
    padding: 1.2rem 1.3rem;
    border: 1px solid rgba(31, 41, 55, 0.9);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.85);
}

.form-group {
    margin-bottom: 0.9rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border-radius: 10px;
    border: 1px solid rgba(55, 65, 81, 0.9);
    background: rgba(15, 23, 42, 0.9);
    color: var(--text-main);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.35);
    background: #020617;
}

.contact-submit {
    width: 100%;
    margin-top: 0.4rem;
    opacity: 0.5;
    cursor: not-allowed;
}

/* Scroll reveal animation */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.55s ease-out, transform 0.55s ease-out;
}

.reveal-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
.footer {
    margin-top: 1.5rem;
    border-top: 1px solid rgba(30, 64, 175, 0.8);
    background: radial-gradient(circle at top, #020617, #020617 55%, #000 100%);
    padding-top: 1.8rem;
}

.footer-content {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1.5fr);
    gap: 1.5rem;
    padding-bottom: 1.4rem;
}

.footer-section h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.footer-section p,
.footer-section li,
.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section li {
    margin-bottom: 0.3rem;
}

.footer-section a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(15, 23, 42, 0.9);
    text-align: center;
    padding: 0.7rem 1rem 1.1rem;
    font-size: 0.8rem;
    color: #6b7280;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-side-card {
        order: -1;
    }

    .reviews-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .categories-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-content {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }
}

@media (max-width: 640px) {
    .nav {
        padding-inline: 1rem;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        inset-inline: 0;
        top: 100%;
        background: rgba(5, 8, 22, 0.98);
        flex-direction: column;
        align-items: flex-start;
        padding: 0.6rem 1.4rem 0.8rem;
        border-bottom: 1px solid rgba(30, 64, 175, 0.7);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.22s ease-out;
    }

    .nav-links.open {
        max-height: 260px;
    }

    .nav-links li {
        width: 100%;
    }

    .hero {
        padding-top: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .reviews-grid,
    .categories-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .footer-content {
        grid-template-columns: minmax(0, 1fr);
    }

    .contact-form {
        padding-inline: 1rem;
    }
}