/* /assets/css/style.css */

:root {
    --color-bg: #050712;
    --color-bg-soft: #0b0f1f;
    --color-glass: rgba(15, 23, 42, 0.75);
    --color-border: rgba(148, 163, 184, 0.3);
    --color-primary: #14b8a6; /* teal */
    --color-primary-soft: rgba(20, 184, 166, 0.15);
    --color-accent: #22d3ee; /* neon cyan */
    --color-text: #e5e7eb;
    --color-muted: #9ca3af;
    --color-danger: #f97373;
    --color-success: #4ade80;

    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-pill: 999px;

    --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.7);
    --shadow-subtle: 0 10px 30px rgba(15, 23, 42, 0.5);

    --transition-fast: 0.18s ease-out;
    --transition-med: 0.28s ease-out;

    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", sans-serif;
}

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

html, body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at top left, #0f172a 0, #020617 45%, #000 100%);
    color: var(--color-text);
    font-family: var(--font-sans);
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
}

/* Layout */

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-intro {
    max-width: 640px;
    margin: 0.75rem auto 2.5rem;
    text-align: center;
    color: var(--color-muted);
}

/* Header / Nav */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--color-border);
}

.glass-nav {
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.6));
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 12px;
    background: radial-gradient(circle at 30% 0%, var(--color-accent), var(--color-primary));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: #0b1120;
    box-shadow: var(--shadow-subtle);
}

.logo-mark.small {
    width: 24px;
    height: 24px;
    font-size: 0.7rem;
}

.logo-text {
    font-size: 0.95rem;
}

.logo-text .dot {
    color: var(--color-accent);
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.25rem;
    margin: 0;
    padding: 0;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-muted);
    font-size: 0.9rem;
    position: relative;
    padding-bottom: 0.15rem;
    transition: color var(--transition-fast);
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.15rem;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--color-primary), var(--color-accent));
    transition: width var(--transition-med);
}

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

.main-nav a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.8rem;
    background: radial-gradient(circle at top left, var(--color-primary-soft), transparent);
    transition: background var(--transition-med), transform var(--transition-fast), border-color var(--transition-fast);
}

.nav-cta:hover {
    background: radial-gradient(circle at top left, var(--color-accent), transparent);
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

/* Hero */

.hero-section {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 5rem 0 4rem;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 0%, rgba(56, 189, 248, 0.25), transparent 55%),
        radial-gradient(circle at 80% 10%, rgba(45, 212, 191, 0.25), transparent 55%),
        radial-gradient(circle at 50% 100%, rgba(59, 130, 246, 0.2), transparent 60%);
    opacity: 0.9;
    pointer-events: none;
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 3rem;
    z-index: 1;
}

.hero-text h1 {
    font-size: clamp(2.4rem, 4vw, 3.1rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-text p {
    color: var(--color-muted);
    max-width: 520px;
    font-size: 0.98rem;
}

.hero-actions {
    margin-top: 1.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.4rem;
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-med), color var(--transition-fast);
}

.primary-btn {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #020617;
    box-shadow: var(--shadow-soft);
}

.primary-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 55px rgba(15, 23, 42, 0.9);
}

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

.ghost-btn:hover {
    background: var(--color-primary-soft);
    border-color: var(--color-primary);
}

.full-width {
    width: 100%;
}

/* Hero visual */

.hero-visual {
    position: relative;
}

.floating-card {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.8));
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.4rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    position: relative;
    z-index: 2;
}

.floating-card h2 {
    font-size: 1.1rem;
    margin-bottom: 0.4rem;
}

.floating-card p {
    font-size: 0.9rem;
    color: var(--color-muted);
    margin-bottom: 0.75rem;
}

.floating-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-text);
}

.floating-card li::before {
    content: "• ";
    color: var(--color-primary);
}

.orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(4px);
    opacity: 0.9;
}

.orb-teal {
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, var(--color-primary), transparent);
    top: -20px;
    right: -40px;
}

.orb-neon {
    width: 90px;
    height: 90px;
    background: radial-gradient(circle, var(--color-accent), transparent);
    bottom: -20px;
    left: -30px;
}

/* Two-column layout */

.two-column {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: flex-start;
}

.glass-card {
    background: var(--color-glass);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
}

.bullet-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 0;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.bullet-list li + li {
    margin-top: 0.4rem;
}

/* Services */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.75rem;
}

.service-card {
    background: var(--color-bg-soft);
    border-radius: var(--radius-lg);
    padding: 1.6rem 1.4rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
    transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med), background var(--transition-med);
}

.service-card h3 {
    margin-top: 0;
    margin-bottom: 0.4rem;
    font-size: 1.05rem;
}

.service-card p {
    margin: 0 0 0.75rem;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-text);
}

.service-card li + li {
    margin-top: 0.25rem;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
    border-color: var(--color-primary);
    background: radial-gradient(circle at top left, rgba(20, 184, 166, 0.08), var(--color-bg-soft));
}

/* Portfolio */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
}

.portfolio-thumb {
    height: 140px;
    background: radial-gradient(circle at 20% 0%, rgba(56, 189, 248, 0.3), transparent 60%),
                radial-gradient(circle at 80% 100%, rgba(20, 184, 166, 0.3), transparent 60%);
}

.portfolio-content {
    padding: 1.1rem 1.2rem 1.2rem;
}

.portfolio-content h3 {
    margin: 0 0 0.4rem;
    font-size: 1rem;
}

.portfolio-content p {
    margin: 0 0 0.7rem;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-pill);
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-size: 0.75rem;
}

.portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
    border-color: var(--color-accent);
}

/* Contact */

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
    gap: 2.5rem;
    align-items: flex-start;
}

.contact-info p {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.contact-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text);
}

.contact-form .form-group {
    margin-bottom: 1rem;
}

.contact-form label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
    color: var(--color-muted);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: rgba(15, 23, 42, 0.9);
    color: var(--color-text);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px rgba(20, 184, 166, 0.4);
    background: rgba(15, 23, 42, 1);
}

.alert {
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: 0.9rem;
}

.alert.success {
    background: rgba(22, 163, 74, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.6);
    color: var(--color-success);
}

.alert.error {
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.7);
    color: var(--color-danger);
}

/* Footer */

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.25rem 0;
    background: rgba(15, 23, 42, 0.95);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--color-muted);
}

.footer-right a {
    color: var(--color-accent);
    text-decoration: none;
}

.footer-right a:hover {
    text-decoration: underline;
}

/* Scroll to top button */

#scrollTopBtn {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: none;
    background: radial-gradient(circle at 30% 0%, var(--color-accent), var(--color-primary));
    color: #020617;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    z-index: 40;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
}

#scrollTopBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 55px rgba(15, 23, 42, 0.9);
}

/* Scroll animations */

[data-animate] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* Variants */

[data-animate="fade-left"] {
    transform: translateX(18px);
}

[data-animate="fade-right"] {
    transform: translateX(-18px);
}

[data-animate="fade-left"].visible,
[data-animate="fade-right"].visible {
    transform: translateX(0);
}

/* Responsive */

@media (max-width: 900px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        order: -1;
    }

    .two-column,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .nav-container {
        gap: 0.75rem;
    }

    .main-nav ul {
        display: none; /* could be replaced with a mobile menu later */
    }
}

@media (max-width: 600px) {
    .section {
        padding: 3.5rem 0;
    }

    .hero-section {
        padding-top: 4rem;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }
}