/* ═══════════════════════════════════════════════════════════
   SMARTS TECH — Hub Landing Page
   Brand Colors: Black #000, Navy #20324A, Steel Blue #799BC5
   ═══════════════════════════════════════════════════════════ */

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

:root {
    --black: #000000;
    --navy: #20324A;
    --navy-mid: #2a4060;
    --navy-light: #354e6e;
    --steel: #799BC5;
    --steel-light: #9bb5d6;
    --steel-bright: #a8c4e0;
    --steel-dim: rgba(121, 155, 197, 0.12);
    --steel-glow: rgba(121, 155, 197, 0.35);

    --bg-deep: #030810;
    --bg-primary: #060d18;
    --bg-card: rgba(32, 50, 74, 0.25);
    --bg-card-hover: rgba(32, 50, 74, 0.45);

    --text-primary: #e8edf4;
    --text-secondary: rgba(232, 237, 244, 0.55);
    --text-muted: rgba(232, 237, 244, 0.3);

    --border-subtle: rgba(121, 155, 197, 0.08);
    --border-card: rgba(121, 155, 197, 0.1);
    --border-card-hover: rgba(121, 155, 197, 0.3);

    --radius-xl: 20px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --radius-pill: 100px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition: 0.4s var(--ease);
    --transition-fast: 0.25s var(--ease);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg-deep);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ── Particle Canvas ── */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ── Ambient Gradient Orbs ── */
.ambient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(32, 50, 74, 0.6) 0%, transparent 70%);
    top: -200px;
    left: -150px;
    animation: orbFloat1 20s ease-in-out infinite;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(121, 155, 197, 0.15) 0%, transparent 70%);
    bottom: -100px;
    right: -100px;
    animation: orbFloat2 25s ease-in-out infinite;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(32, 50, 74, 0.4) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: orbFloat3 18s ease-in-out infinite;
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(80px, 60px) scale(1.1); }
    66% { transform: translate(-40px, 30px) scale(0.95); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-60px, -40px) scale(1.05); }
    66% { transform: translate(30px, -60px) scale(0.9); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.5; }
}

/* ═══════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1;
    padding: 2rem;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 50% 45%, rgba(32, 50, 74, 0.45) 0%, transparent 70%),
        radial-gradient(ellipse 50% 30% at 30% 70%, rgba(121, 155, 197, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 40% 30% at 70% 30%, rgba(121, 155, 197, 0.04) 0%, transparent 60%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    animation: heroReveal 1.2s var(--ease) forwards;
}

@keyframes heroReveal {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
        filter: blur(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

/* Logo */
.logo-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.logo-icon {
    width: 160px;
    height: auto;
    filter:
        drop-shadow(0 0 40px rgba(121, 155, 197, 0.25))
        drop-shadow(0 0 80px rgba(121, 155, 197, 0.1));
    animation: logoFloat 7s ease-in-out infinite;
    transition: filter 0.5s ease;
}

.logo-icon:hover {
    filter:
        drop-shadow(0 0 50px rgba(121, 155, 197, 0.4))
        drop-shadow(0 0 100px rgba(121, 155, 197, 0.2));
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 250px;
    height: 250px;
    background: radial-gradient(circle,
        rgba(121, 155, 197, 0.12) 0%,
        rgba(32, 50, 74, 0.08) 40%,
        transparent 70%);
    border-radius: 50%;
    animation: pulseGlow 5s ease-in-out infinite;
    pointer-events: none;
}

/* Brand Name Typography */
.brand-name {
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 800;
    letter-spacing: 0.1em;
    line-height: 1;
    margin-bottom: 1rem;
    position: relative;
}

.brand-smarts {
    color: var(--text-primary);
    display: block;
    text-shadow: 0 0 60px rgba(121, 155, 197, 0.15);
}

.brand-tech {
    color: var(--steel);
    font-weight: 300;
    letter-spacing: 0.35em;
    font-size: 0.45em;
    display: block;
    margin-top: 0.2em;
    opacity: 0.9;
}

.tagline {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--steel-light);
    font-weight: 400;
    margin-bottom: 0.5rem;
    letter-spacing: 0.03em;
}

.subtitle {
    font-size: clamp(0.85rem, 1.5vw, 1rem);
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.02em;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeIn 1s ease-out 1s both;
}

.scroll-mouse {
    width: 22px;
    height: 36px;
    border: 1.5px solid rgba(121, 155, 197, 0.25);
    border-radius: 11px;
    position: relative;
}

.scroll-dot {
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 6px;
    background: var(--steel);
    border-radius: 2px;
    animation: scrollDot 2.5s ease-in-out infinite;
}

.scroll-text {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    font-weight: 400;
}

/* ═══════════════════════════════════════
   PROJECTS SECTION
   ═══════════════════════════════════════ */
.projects {
    position: relative;
    z-index: 1;
    padding: 5rem 2rem 4rem;
    max-width: 1240px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-line {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--steel), transparent);
    margin: 0 auto 1.5rem;
    border-radius: 1px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.section-subtitle {
    font-size: clamp(0.9rem, 1.5vw, 1.05rem);
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 500px;
    margin: 0 auto;
}

/* Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

/* ── Project Card ── */
.project-card {
    position: relative;
    display: block;
    text-decoration: none;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition:
        transform var(--transition),
        border-color var(--transition),
        background var(--transition),
        box-shadow var(--transition);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.project-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-card-hover);
    transform: translateY(-6px);
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.35),
        0 0 40px rgba(121, 155, 197, 0.06),
        inset 0 1px 0 rgba(121, 155, 197, 0.08);
}

/* Card shine sweep on hover */
.card-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        105deg,
        transparent 40%,
        rgba(121, 155, 197, 0.03) 45%,
        rgba(121, 155, 197, 0.06) 50%,
        rgba(121, 155, 197, 0.03) 55%,
        transparent 60%
    );
    transition: left 0.6s var(--ease);
    pointer-events: none;
    z-index: 1;
}

.project-card:hover .card-shine {
    left: 100%;
}

/* Top border glow */
.card-border-glow {
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--steel-glow) 50%,
        transparent 100%);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 2;
}

.project-card:hover .card-border-glow {
    opacity: 1;
}

/* Card Content */
.card-content {
    position: relative;
    padding: 2rem;
    z-index: 3;
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.card-icon {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--accent, var(--steel)) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent, var(--steel)) 15%, transparent);
    border-radius: var(--radius-md);
    color: var(--accent, var(--steel));
    transition: var(--transition);
}

.card-icon svg {
    width: 22px;
    height: 22px;
}

.project-card:hover .card-icon {
    background: color-mix(in srgb, var(--accent, var(--steel)) 20%, transparent);
    border-color: color-mix(in srgb, var(--accent, var(--steel)) 30%, transparent);
    box-shadow: 0 0 24px color-mix(in srgb, var(--accent, var(--steel)) 15%, transparent);
}

/* Status indicator */
.card-status {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-pill);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-dot.live {
    background: #34D399;
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
    animation: statusPulse 2.5s ease-in-out infinite;
}

.status-dot.staging {
    background: #FBBF24;
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.5);
    animation: statusPulse 2.5s ease-in-out infinite;
}

.status-label {
    font-size: 0.6rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Card text */
.card-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.card-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 1rem;
    font-weight: 300;
}

.card-domain {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    color: var(--steel);
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-bottom: 0.85rem;
    opacity: 0.75;
}

.card-domain svg {
    opacity: 0.6;
}

/* Tags */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.tag {
    padding: 0.2rem 0.6rem;
    font-size: 0.6rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    background: rgba(121, 155, 197, 0.06);
    border: 1px solid rgba(121, 155, 197, 0.1);
    border-radius: var(--radius-pill);
    color: var(--steel-light);
    transition: var(--transition-fast);
}

.project-card:hover .tag {
    background: rgba(121, 155, 197, 0.1);
    border-color: rgba(121, 155, 197, 0.18);
}

/* CTA */
.card-cta {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--steel);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.card-cta .arrow {
    display: inline-block;
    transition: transform var(--transition);
    font-size: 1.1em;
}

.project-card:hover .card-cta {
    color: var(--steel-bright);
}

.project-card:hover .card-cta .arrow {
    transform: translateX(5px);
}

/* ═══════════════════════════════════════
   TECH STRIP
   ═══════════════════════════════════════ */
.tech-strip {
    position: relative;
    z-index: 1;
    padding: 3rem 2rem 4rem;
    max-width: 860px;
    margin: 0 auto;
}

.tech-content {
    text-align: center;
    padding: 3rem 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
}

.tech-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        rgba(121, 155, 197, 0.2),
        transparent);
}

.tech-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    color: var(--steel);
    opacity: 0.7;
}

.tech-icon svg {
    width: 28px;
    height: 28px;
}

.tech-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.tech-content p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 1.75rem;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.tech-badge {
    padding: 0.35rem 0.9rem;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg,
        rgba(32, 50, 74, 0.5),
        rgba(121, 155, 197, 0.08));
    border: 1px solid rgba(121, 155, 197, 0.12);
    border-radius: var(--radius-pill);
    color: var(--steel-light);
    transition: var(--transition-fast);
    cursor: default;
}

.tech-badge:hover {
    border-color: rgba(121, 155, 197, 0.3);
    background: rgba(121, 155, 197, 0.12);
    color: var(--steel-bright);
}

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
.footer {
    position: relative;
    z-index: 1;
    padding: 0 2rem 3rem;
    margin-top: 2rem;
}

.footer-divider {
    max-width: 1240px;
    margin: 0 auto 2.5rem;
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        var(--border-card) 20%,
        var(--border-card) 80%,
        transparent);
}

.footer-content {
    max-width: 1240px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 0.6rem;
}

.footer-name {
    color: var(--text-primary);
}

.footer-tech {
    color: var(--steel);
    font-weight: 300;
    letter-spacing: 0.2em;
    font-size: 0.7em;
    margin-left: 0.15em;
}

.footer-legal {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
    font-weight: 300;
}

.footer-email {
    display: inline-block;
    font-size: 0.82rem;
    color: var(--steel);
    text-decoration: none;
    font-weight: 400;
    transition: var(--transition-fast);
    padding: 0.15rem 0;
    border-bottom: 1px solid transparent;
}

.footer-email:hover {
    color: var(--steel-bright);
    border-bottom-color: var(--steel);
}

.footer-copy {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 1.25rem;
    font-weight: 300;
    letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════
   REVEAL ANIMATIONS
   ═══════════════════════════════════════ */
.reveal {
    opacity: 0;
    transform: translateY(35px);
    transition:
        opacity 0.8s var(--ease),
        transform 0.8s var(--ease);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ═══════════════════════════════════════
   KEYFRAMES
   ═══════════════════════════════════════ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes pulseGlow {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

@keyframes scrollDot {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateX(-50%) translateY(12px);
        opacity: 0.2;
    }
}

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */
@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .card-content {
        padding: 1.5rem;
    }

    .logo-icon {
        width: 110px;
    }

    .logo-glow {
        width: 180px;
        height: 180px;
    }

    .tech-content {
        padding: 2rem 1.5rem;
    }

    .hero {
        padding: 2rem 1.5rem;
    }

    .projects {
        padding: 4rem 1.25rem 3rem;
    }

    .ambient-orb {
        opacity: 0.25;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1025px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ── Selection ── */
::selection {
    background: rgba(121, 155, 197, 0.25);
    color: var(--text-primary);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--navy);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--navy-mid);
}