/* ===========================
   DEVIN GRUBER PORTFOLIO V5
   Light & Airy — Clean Sans-Serif
   =========================== */

:root {
    --color-bg: #fafaf9;
    --color-bg-alt: #f5f5f4;
    --color-surface: #ffffff;
    --color-text: #1c1917;
    --color-text-muted: #57534e;
    --color-text-light: #a8a29e;
    --color-accent: #292524;
    --color-accent-soft: #d6d3d1;
    --color-warm: #c2a472;
    --color-warm-light: #f5f0e8;
    --color-pop: #B5CB41;
    --color-pop-light: rgba(181, 203, 65, 0.1);
    --color-border: #e7e5e4;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-sans); color: var(--color-text); background-color: var(--color-bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===========================
   NAVIGATION
   =========================== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}
.nav.scrolled {
    background: rgba(250, 250, 249, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}
.nav.scrolled .nav-logo,
.nav.scrolled .nav-links a {
    color: var(--color-text-muted);
    text-shadow: none;
}
.nav.scrolled .nav-links a:hover { color: var(--color-text); }
.nav.scrolled .nav-cta {
    background: var(--color-accent);
    border: none;
    color: white !important;
    text-shadow: none;
}
.nav.hero-visible {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}
.nav.hero-visible .nav-logo,
.nav.hero-visible .nav-links a {
    color: white;
    text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}
.nav.hero-visible .nav-cta {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.4);
    text-shadow: none;
}
.nav.hero-visible .nav-toggle span { background: white; }
.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.nav-logo { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.02em; color: var(--color-text-muted); }
.nav-links { display: flex; align-items: center; gap: 36px; list-style: none; }
.nav-links a { font-size: 0.9rem; font-weight: 400; color: var(--color-text-muted); text-shadow: none; transition: var(--transition); }
.nav-links a:hover { color: var(--color-text); }
.nav-cta { padding: 8px 20px; background: var(--color-accent); border: none; color: white !important; border-radius: 100px; font-weight: 500; text-shadow: none; }
.nav-cta:hover { background: var(--color-pop); border-color: var(--color-pop); opacity: 1; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: var(--transition); }

/* ===========================
   HERO
   =========================== */
.hero {
    position: relative; min-height: 100vh; min-height: 100dvh;
    display: flex; align-items: center; justify-content: center;
    text-align: center; overflow: hidden;
}
.hero-video-wrap { position: absolute; inset: 0; z-index: 0; }
.hero-video { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.2) 40%, rgba(0,0,0,0.5) 100%);
}
.hero-content {
    position: relative; z-index: 1; padding: 80px 32px;
    display: flex; flex-direction: column; align-items: center; gap: 24px;
    width: 100%; max-width: 800px; margin: 0 auto; text-align: center;
}
.hero-logo-img {
    width: 100%; max-width: 520px; height: auto;
    display: block; margin: 0 auto;
}
.hero-tagline {
    font-size: 1.5rem; color: rgba(255,255,255,0.95); font-weight: 300;
    letter-spacing: 0.25em; text-transform: uppercase;
    text-shadow: 0 2px 12px rgba(0,0,0,0.5); margin-top: 8px;
}
.hero-scroll { margin-top: 48px; color: #B5CB41; transition: var(--transition); }
.hero-scroll:hover { color: #B5CB41; filter: brightness(1.2); }
.hero-scroll svg { animation: float 2s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ===========================
   SECTIONS
   =========================== */
.section { padding: 100px 0; }
.section-title { font-family: var(--font-sans); font-size: 2rem; font-weight: 600; letter-spacing: -0.03em; margin-bottom: 12px; }
.section-subtitle { color: var(--color-text-muted); font-size: 1rem; font-weight: 300; margin-bottom: 48px; max-width: 600px; }

/* ===========================
   ABOUT
   =========================== */
.about { background: var(--color-surface); }
.about-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px; align-items: center; }
.about-image { aspect-ratio: 3/4; border-radius: var(--radius-lg); overflow: hidden; }
.about-photo { width: 100%; height: 100%; object-fit: cover; }
.about-text p { color: var(--color-text-muted); margin-bottom: 16px; font-size: 1rem; line-height: 1.8; }
.about-text p:last-child { margin-bottom: 0; }

/* ===========================
   PHOTOS — Preview Grid (masonry columns)
   =========================== */
.photo-preview-grid {
    columns: 3;
    column-gap: 12px;
}
.photo-preview-grid .photo-item {
    break-inside: avoid;
    margin-bottom: 12px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}
.photo-preview-grid .photo-item img {
    width: 100%; height: auto; display: block;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    opacity: 0;
}
.photo-preview-grid .photo-item img.loaded { opacity: 1; }
.photo-preview-grid .photo-item:hover img { transform: scale(1.02); }

/* ===========================
   PHOTOS — Full Gallery (masonry)
   =========================== */
.photo-grid-full {
    columns: 3;
    column-gap: 12px;
}
.photo-grid-full .photo-item {
    break-inside: avoid;
    margin-bottom: 12px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}
.photo-grid-full .photo-item img {
    width: 100%; height: auto; display: block;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    opacity: 0;
}
.photo-grid-full .photo-item img.loaded { opacity: 1; }
.photo-grid-full .photo-item:hover img { transform: scale(1.02); }

/* ===========================
   GALLERY CTA BUTTON
   =========================== */
.gallery-cta {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}
.btn-gallery {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 40px;
    border: 2px solid var(--color-border);
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
    transition: var(--transition);
}
.btn-gallery:hover {
    background: var(--color-pop);
    border-color: var(--color-pop);
    color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* ===========================
   VIDEO — iPhone Frame
   =========================== */
.video { background: var(--color-surface); }
.iphone-frame-wrap { display: flex; justify-content: center; margin-bottom: 72px; }
.iphone-frame {
    position: relative; width: 380px; background: #0a0a0a;
    border-radius: 54px; padding: 14px;
    box-shadow: 0 0 0 2px #1a1a1a, 0 0 0 5px #2a2a2a, var(--shadow-xl), 0 40px 80px rgba(0,0,0,0.15);
}
.iphone-notch {
    position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
    width: 100px; height: 28px; background: #0a0a0a; border-radius: 0 0 18px 18px; z-index: 2;
}
.iphone-screen {
    position: relative; border-radius: 42px; overflow: hidden;
    background: #000; aspect-ratio: 9/19.5;
}
.montage-video { width: 100%; height: 100%; object-fit: cover; border-radius: 42px; }

/* ===========================
   VIDEO — Preview Grid (4 vertical + 2 horizontal)
   =========================== */
.video-preview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 48px;
}
.video-clip {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #000;
}
.video-clip.vertical { aspect-ratio: 9/16; }
.video-clip.horizontal { aspect-ratio: 16/9; grid-column: span 2; }
.video-clip video { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-lg); }

/* ===========================
   VIDEO — Full Gallery Grid
   =========================== */
.video-grid-full {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.video-grid-full .video-clip.vertical { aspect-ratio: 9/16; }
.video-grid-full .video-clip.horizontal { aspect-ratio: 16/9; grid-column: span 2; }
.video-grid-full .video-clip video { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-lg); }
.video-clip-montage { position: relative; }
.video-label {
    position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%);
    background: rgba(0,0,0,0.6); color: white; font-size: 0.7rem;
    padding: 4px 12px; border-radius: 100px; letter-spacing: 0.05em;
    font-weight: 500; pointer-events: none;
}

/* ===========================
   GALLERY PAGES — Header
   =========================== */
.gallery-page-header {
    padding: 120px 0 40px;
}
.gallery-page-header .section-title { margin-bottom: 8px; }
.gallery-page-header .section-subtitle { margin-bottom: 0; }
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    margin-bottom: 24px;
    transition: var(--transition);
}
.back-link:hover {
    background: var(--color-pop);
    border-color: var(--color-pop);
    color: white;
}
.gallery-page-content { padding: 0 0 100px; }

/* ===========================
   SKILLS
   =========================== */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 28px 24px; transition: var(--transition);
}
.skill-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--color-pop); }
.skill-icon {
    width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
    background: var(--color-pop-light); border-radius: 10px; margin-bottom: 16px; color: var(--color-pop);
}
.skill-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 8px; }
.skill-card p { color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.7; }

/* ===========================
   CONTACT
   =========================== */
.contact { background: var(--color-surface); text-align: center; }
.contact-content { max-width: 520px; margin: 0 auto; }
.contact-text { color: var(--color-text-muted); font-size: 1.05rem; line-height: 1.8; margin-bottom: 36px; }
.contact-links { display: flex; flex-direction: column; gap: 14px; align-items: center; }
.contact-link {
    display: inline-flex; align-items: center; gap: 12px; padding: 14px 28px;
    border: 1px solid var(--color-border); border-radius: 100px;
    font-size: 0.9rem; color: var(--color-text-muted); transition: var(--transition);
    min-width: 280px; justify-content: center;
}
.contact-link:hover {
    background: var(--color-pop);
    border-color: var(--color-pop);
    color: white;
}

/* ===========================
   FOOTER
   =========================== */
.footer { padding: 32px 0; text-align: center; color: var(--color-text-light); font-size: 0.8rem; border-top: 1px solid var(--color-border); }

/* ===========================
   LIGHTBOX
   =========================== */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.lightbox.active {
    opacity: 1;
    pointer-events: auto;
}
.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .photo-grid-full { columns: 2; }
    .photo-preview-grid { columns: 2; }
    .video-preview-grid { grid-template-columns: repeat(4, 1fr); }
    .video-grid-full { grid-template-columns: repeat(4, 1fr); }
    .video-clip.horizontal { grid-column: span 2; }
    .iphone-frame { width: 340px; border-radius: 48px; padding: 12px; }
    .iphone-screen { border-radius: 38px; }
    .montage-video { border-radius: 38px; }
    .iphone-notch { width: 90px; height: 24px; top: 12px; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
        background: var(--color-surface); flex-direction: column;
        padding: 100px 40px 40px; gap: 24px; transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }
    .nav-links.active { right: 0; }
    .nav.hero-visible .nav-links { background: var(--color-surface); }
    .nav.hero-visible .nav-links a { color: var(--color-text-muted); text-shadow: none; }
    .nav-toggle { display: flex; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .hero-content { padding: 60px 24px; }
    .hero-logo-img { max-width: 85vw; }
    .hero-tagline { font-size: 1.4rem; }
    .hero-scroll svg { width: 36px; height: 36px; }
    .section { padding: 72px 0; }
    .section-title { font-size: 1.6rem; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-image { max-width: 280px; margin: 0 auto; }
    .photo-preview-grid { columns: 2; column-gap: 8px; }
    .photo-preview-grid .photo-item { margin-bottom: 8px; }
    .photo-grid-full { columns: 2; column-gap: 8px; }
    .photo-grid-full .photo-item { margin-bottom: 8px; }
    .iphone-frame { width: 300px; border-radius: 44px; padding: 11px; }
    .iphone-screen { border-radius: 35px; }
    .montage-video { border-radius: 35px; }
    .iphone-notch { width: 80px; height: 22px; top: 11px; }
    .video-preview-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .video-grid-full { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .video-clip.horizontal { grid-column: span 2; }
    .skills-grid { grid-template-columns: 1fr; }
    .contact-link { min-width: unset; width: 100%; max-width: 320px; }
}

@media (max-width: 480px) {
    .hero-logo-img { max-width: 80vw; }
    .hero-tagline { font-size: 1.2rem; letter-spacing: 0.2em; }
    .hero-scroll svg { width: 32px; height: 32px; }
    .photo-preview-grid { columns: 2; }
    .photo-grid-full { columns: 2; }
    .iphone-frame { width: 260px; border-radius: 40px; padding: 10px; }
    .iphone-screen { border-radius: 32px; }
    .montage-video { border-radius: 32px; }
    .iphone-notch { width: 72px; height: 20px; top: 10px; }
    .video-preview-grid { grid-template-columns: repeat(2, 1fr); }
    .video-grid-full { grid-template-columns: repeat(2, 1fr); }
}

/* ===========================
   ANIMATIONS
   =========================== */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }