/* ===== CSS VARIABLES ===== */
:root {
    --black: #0A0A0A;
    --ink: #141414;
    --white: #FFFFFF;
    --gray: #6B6B6B;
    --gray-light: #9A9A9A;
    --line: #E6E6E6;
    --stone: #F3F1ED;
    --sand: #B7A594;
    --sand-dark: #9E8B78;
    --radius: 2px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --transition: 0.5s var(--ease);
    --maxw: 1320px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--ink);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.7;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 40px; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
::selection { background: var(--ink); color: var(--white); }

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--ink);
    line-height: 1.05;
    font-weight: 500;
    letter-spacing: -0.02em;
}

/* ===== SECTION SHARED ===== */
.section-tag {
    display: inline-block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--gray);
    margin-bottom: 26px;
}
.section-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.02;
}
.section-title em { font-style: normal; color: var(--sand-dark); }

/* ===== PRELOADER ===== */
.preloader {
    position: fixed; inset: 0; background: var(--white); z-index: 10000;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
}
.preloader.hidden { opacity: 0; visibility: hidden; }
.preloader-inner { text-align: center; }
.preloader-mark {
    font-family: 'Space Grotesk', sans-serif; font-weight: 600;
    font-size: 2rem; letter-spacing: 0.5em; color: var(--ink);
    padding-left: 0.5em;
    display: block;
    animation: preFade 1.4s var(--ease) infinite alternate;
}
.preloader-line {
    display: block; width: 0; height: 1px; background: var(--ink);
    margin: 20px auto 0;
    animation: preLine 1.6s var(--ease) infinite;
}
@keyframes preFade { from { opacity: 0.35; } to { opacity: 1; } }
@keyframes preLine { 0% { width: 0; } 50% { width: 120px; } 100% { width: 0; } }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 30px 0; transition: padding var(--transition), background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(16px);
    padding: 16px 0; border-bottom: 1px solid var(--line);
}
.nav-container {
    max-width: var(--maxw); margin: 0 auto; padding: 0 40px;
    display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: baseline; gap: 10px; }
.logo-mark {
    font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.4rem;
    letter-spacing: 0.18em; color: var(--ink); padding-left: 0.18em;
}
.logo-sub {
    font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--gray-light); font-weight: 400;
}
.nav-links { display: flex; list-style: none; gap: 38px; }
.nav-links a {
    font-size: 0.82rem; font-weight: 400; letter-spacing: 0.06em;
    color: var(--gray); transition: color var(--transition); position: relative;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: -6px; left: 0; width: 0; height: 1px;
    background: var(--ink); transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
    font-family: 'Space Grotesk', sans-serif; padding: 12px 26px;
    background: var(--ink); color: var(--white) !important;
    font-size: 0.78rem; font-weight: 500; letter-spacing: 0.06em;
    border: 1px solid var(--ink); transition: all var(--transition);
}
.nav-cta:hover { background: transparent; color: var(--ink) !important; }
.hamburger { display: none; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { width: 26px; height: 1.5px; background: var(--ink); transition: all 0.35s var(--ease); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: 'Space Grotesk', sans-serif; padding: 16px 36px;
    font-size: 0.82rem; font-weight: 500; letter-spacing: 0.06em; cursor: pointer;
    border: 1px solid var(--ink); transition: all var(--transition); white-space: nowrap;
    border-radius: var(--radius);
}
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: transparent; color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-full { width: 100%; }

/* ===== HERO ===== */
.hero {
    position: relative; padding: 220px 0 0; min-height: 100vh;
    display: flex; flex-direction: column; justify-content: space-between;
}
.hero-inner { max-width: 900px; }
.hero-eyebrow {
    display: block; font-family: 'Space Grotesk', sans-serif; font-size: 0.76rem;
    letter-spacing: 0.24em; text-transform: uppercase; color: var(--gray);
    margin-bottom: 34px; animation: rise 1s var(--ease) both;
}
.hero-title {
    font-size: clamp(2.8rem, 8vw, 6.4rem); font-weight: 500; letter-spacing: -0.04em;
    line-height: 0.98; margin-bottom: 34px; animation: rise 1s var(--ease) 0.1s both;
}
.hero-title em { font-style: italic; font-weight: 400; color: var(--sand-dark); }
.hero-lead {
    font-size: clamp(1rem, 1.6vw, 1.25rem); color: var(--gray); max-width: 560px;
    font-weight: 300; margin-bottom: 44px; animation: rise 1s var(--ease) 0.2s both;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; animation: rise 1s var(--ease) 0.3s both; }

@keyframes rise { from { opacity: 0; transform: translateY(38px); } to { opacity: 1; transform: translateY(0); } }

.hero-media {
    position: relative; margin-top: 90px; width: 100%; height: 62vh; min-height: 440px;
    overflow: hidden; animation: revealImg 1.4s var(--ease) 0.35s both;
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.02); transition: filter 0.9s var(--ease); }
.hero-media:hover img { filter: grayscale(0) contrast(1); }
.hero-media-caption {
    position: absolute; bottom: 24px; left: 40px; font-family: 'Space Grotesk', sans-serif;
    font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--white);
    mix-blend-mode: difference;
}
@keyframes revealImg { from { opacity: 0; clip-path: inset(0 0 100% 0); } to { opacity: 1; clip-path: inset(0 0 0 0); } }

.hero-scroll {
    position: absolute; top: 44%; right: 40px; display: flex; flex-direction: column;
    align-items: center; gap: 12px; writing-mode: vertical-rl;
}
.hero-scroll span { font-family: 'Space Grotesk', sans-serif; font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray-light); }
.hero-scroll-line { width: 1px; height: 60px; background: var(--line); position: relative; overflow: hidden; }
.hero-scroll-line::after { content: ''; position: absolute; top: -100%; left: 0; width: 100%; height: 100%; background: var(--ink); animation: scrollDot 2.2s var(--ease) infinite; }
@keyframes scrollDot { 0% { top: -100%; } 100% { top: 100%; } }

/* ===== MARQUEE ===== */
.marquee { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; padding: 26px 0; background: var(--white); }
.marquee-track { display: flex; align-items: center; gap: 34px; white-space: nowrap; width: max-content; animation: marquee 32s linear infinite; }
.marquee-track span { font-family: 'Space Grotesk', sans-serif; font-size: 1.4rem; font-weight: 500; letter-spacing: -0.01em; color: var(--ink); }
.marquee-track span.sep { color: var(--sand); font-weight: 300; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ===== STUDIO ===== */
.studio { padding: 150px 0; }
.studio-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.studio-media { overflow: hidden; height: 640px; }
.studio-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.02); transition: transform 1.2s var(--ease), filter 0.9s var(--ease); }
.studio-media:hover img { transform: scale(1.04); filter: grayscale(0); }
.studio-body .section-title { margin-bottom: 34px; }
.studio-text { font-size: 1.05rem; color: var(--gray); margin-bottom: 22px; max-width: 480px; }
.studio-stats { display: flex; gap: 48px; margin-top: 48px; padding-top: 44px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.studio-stat { display: flex; flex-direction: column; gap: 6px; }
.ss-num { font-family: 'Space Grotesk', sans-serif; font-size: 2.8rem; font-weight: 500; letter-spacing: -0.03em; color: var(--ink); line-height: 1; }
.ss-lbl { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-light); }

/* ===== PROJECTS ===== */
.projects { padding: 150px 0; background: var(--stone); }
.projects-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 46px; flex-wrap: wrap; }
.projects-head .section-title { margin-top: 4px; }
.projects-intro { font-size: 1rem; color: var(--gray); max-width: 320px; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 54px; }
.filter-btn {
    font-family: 'Space Grotesk', sans-serif; padding: 11px 24px; background: transparent;
    border: 1px solid var(--line); color: var(--gray); font-size: 0.8rem; font-weight: 500;
    letter-spacing: 0.04em; cursor: pointer; transition: all var(--transition); border-radius: var(--radius);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.active { background: var(--ink); border-color: var(--ink); color: var(--white); }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-item { transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.project-item.hidden { display: none; }
.project-media { position: relative; overflow: hidden; height: 400px; background: var(--ink); }
.project-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.03); transition: transform 1s var(--ease), filter 0.8s var(--ease), opacity 0.8s var(--ease); }
.project-item:hover .project-media img { transform: scale(1.06); filter: grayscale(0); opacity: 0.72; }
.project-overlay {
    position: absolute; inset: 0; padding: 26px; display: flex; flex-direction: column;
    justify-content: space-between; pointer-events: none;
}
.project-cat {
    align-self: flex-start; font-family: 'Space Grotesk', sans-serif; font-size: 0.68rem;
    letter-spacing: 0.16em; text-transform: uppercase; color: var(--white); background: rgba(10,10,10,0.55);
    padding: 6px 12px; opacity: 0; transform: translateY(-8px); transition: all var(--transition);
}
.project-meta { color: var(--white); opacity: 0; transform: translateY(12px); transition: all var(--transition); }
.project-meta h3 { color: var(--white); font-size: 1.5rem; font-weight: 500; margin-bottom: 4px; }
.project-meta span { font-family: 'Space Grotesk', sans-serif; font-size: 0.78rem; letter-spacing: 0.08em; color: rgba(255,255,255,0.75); }
.project-item:hover .project-cat, .project-item:hover .project-meta { opacity: 1; transform: translateY(0); }
.projects-empty { display: none; text-align: center; padding: 60px 0; color: var(--gray); font-size: 1rem; }

/* ===== SERVICES ===== */
.services { padding: 150px 0; }
.services-head { margin-bottom: 60px; }
.services-head .section-title { margin-top: 4px; }
.services-list { border-top: 1px solid var(--line); }
.service-row {
    display: grid; grid-template-columns: 90px 1fr 1.6fr; gap: 40px; align-items: baseline;
    padding: 42px 0; border-bottom: 1px solid var(--line); transition: padding var(--transition);
    position: relative;
}
.service-row::before {
    content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 0;
    background: var(--stone); z-index: -1; transition: width var(--transition);
}
.service-row:hover { padding-left: 24px; padding-right: 24px; }
.service-row:hover::before { width: 100%; }
.service-no { font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; color: var(--sand-dark); letter-spacing: 0.1em; }
.service-name h3 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 500; }
.service-desc { font-size: 1rem; color: var(--gray); max-width: 520px; }

/* ===== PROCESS ===== */
.process { padding: 150px 0; background: var(--ink); color: var(--white); }
.process-head { text-align: center; max-width: 620px; margin: 0 auto 70px; }
.process-head .section-tag { color: var(--gray-light); }
.process-head .section-title { color: var(--white); margin-bottom: 18px; }
.process-head .section-title em { color: var(--sand); }
.process-intro { color: var(--gray-light); font-size: 1.05rem; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.process-step {
    padding: 40px 30px; border-left: 1px solid rgba(255,255,255,0.12); transition: background var(--transition);
}
.process-step:last-child { border-right: 1px solid rgba(255,255,255,0.12); }
.process-step:hover { background: rgba(255,255,255,0.04); }
.step-num {
    font-family: 'Space Grotesk', sans-serif; font-size: 0.82rem; letter-spacing: 0.14em;
    color: var(--sand); display: block; margin-bottom: 100px;
}
.process-step h3 { color: var(--white); font-size: 1.5rem; font-weight: 500; margin-bottom: 14px; }
.process-step p { color: var(--gray-light); font-size: 0.92rem; }

/* ===== TEAM ===== */
.team { padding: 150px 0; }
.team-head { margin-bottom: 56px; }
.team-head .section-title { margin-top: 4px; }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.team-photo { overflow: hidden; height: 460px; background: var(--stone); }
.team-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; filter: grayscale(1) contrast(1.02); transition: transform 1s var(--ease), filter 0.8s var(--ease); }
.team-member:hover .team-photo img { transform: scale(1.05); filter: grayscale(0); }
.team-info { padding: 24px 2px 0; }
.team-info h3 { font-size: 1.4rem; font-weight: 500; margin-bottom: 4px; }
.team-role { font-family: 'Space Grotesk', sans-serif; font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--sand-dark); display: block; margin-bottom: 12px; }
.team-info p { font-size: 0.94rem; color: var(--gray); max-width: 320px; }
.team-note { background: var(--ink); color: var(--white); display: flex; align-items: center; }
.team-note .team-info { padding: 48px 40px; }
.team-note h3 { color: var(--white); font-size: 2rem; margin: 14px 0 18px; line-height: 1.05; }
.team-note p { color: var(--gray-light); }
.team-note-tag { font-family: 'Space Grotesk', sans-serif; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--sand); }
.team-note-link { display: inline-block; margin-top: 22px; font-family: 'Space Grotesk', sans-serif; font-size: 0.86rem; letter-spacing: 0.04em; color: var(--white); border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 3px; transition: border-color var(--transition); }
.team-note-link:hover { border-color: var(--sand); }

/* ===== STATS BAND ===== */
.stats-band { padding: 90px 0; background: var(--stone); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 10px 20px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat-number { font-family: 'Space Grotesk', sans-serif; font-size: clamp(2.6rem, 5vw, 3.8rem); font-weight: 500; letter-spacing: -0.03em; color: var(--ink); line-height: 1; }
.stat-suffix { font-family: 'Space Grotesk', sans-serif; font-size: 2rem; color: var(--sand-dark); }
.stat-label { display: block; font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray); margin-top: 14px; }

/* ===== TESTIMONIALS ===== */
.testimonials { padding: 150px 0; background: var(--stone); }
.testimonials-head { margin-bottom: 56px; }
.testimonials-head .section-title { margin-top: 4px; }
.testimonials-slider { overflow: hidden; }
.testimonial-track { display: flex; transition: transform 0.7s var(--ease); }
.testimonial-card { min-width: 100%; padding-right: 40px; }
.testimonial-text {
    font-family: 'Space Grotesk', sans-serif; font-size: clamp(1.4rem, 3.2vw, 2.4rem);
    font-weight: 400; letter-spacing: -0.02em; line-height: 1.3; color: var(--ink);
    max-width: 900px; margin-bottom: 40px;
}
.testimonial-author { display: flex; flex-direction: column; gap: 4px; }
.ta-name { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 500; color: var(--ink); }
.ta-role { font-size: 0.86rem; letter-spacing: 0.06em; color: var(--gray); }
.testimonial-nav { display: flex; align-items: center; gap: 20px; margin-top: 56px; }
.testimonial-btn {
    width: 50px; height: 50px; border: 1px solid var(--line); background: transparent;
    color: var(--ink); font-size: 1.1rem; cursor: pointer; transition: all var(--transition);
    display: flex; align-items: center; justify-content: center; border-radius: var(--radius);
}
.testimonial-btn:hover { background: var(--ink); border-color: var(--ink); color: var(--white); }
.testimonial-dots { display: flex; gap: 8px; margin-left: 8px; }
.testimonial-dots .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line); cursor: pointer; transition: all var(--transition); }
.testimonial-dots .dot.active { background: var(--ink); width: 28px; border-radius: 4px; }

/* ===== CONTACT ===== */
.contact { padding: 150px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.contact-body .section-title { margin-bottom: 26px; }
.contact-lead { font-size: 1.08rem; color: var(--gray); max-width: 400px; margin-bottom: 48px; }
.contact-info { list-style: none; display: flex; flex-direction: column; }
.contact-info li { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 22px 0; border-top: 1px solid var(--line); }
.contact-info li:last-child { border-bottom: 1px solid var(--line); }
.ci-label { font-family: 'Space Grotesk', sans-serif; font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gray-light); }
.ci-value { font-size: 0.98rem; color: var(--ink); }
.contact-form { align-self: start; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form-group { margin-bottom: 26px; }
.form-group label { display: block; font-family: 'Space Grotesk', sans-serif; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray); margin-bottom: 12px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 14px 2px; border: none; border-bottom: 1px solid var(--line);
    font-family: 'Inter', sans-serif; font-size: 0.98rem; font-weight: 300; color: var(--ink);
    background: transparent; transition: border-color var(--transition); outline: none;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--gray-light); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--ink); }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group select {
    cursor: pointer; appearance: none; padding-right: 24px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23141414' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 2px center;
}
.contact-form .btn { margin-top: 12px; }

/* ===== FOOTER ===== */
.footer { background: var(--ink); color: var(--gray-light); padding: 90px 0 32px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.6fr; gap: 48px; padding-bottom: 60px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand .logo-mark { color: var(--white); font-size: 1.8rem; display: inline-block; margin-bottom: 20px; }
.footer-brand p { font-size: 0.92rem; color: var(--gray-light); max-width: 320px; }
.footer-col h4 { color: var(--white); font-family: 'Space Grotesk', sans-serif; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; margin-bottom: 22px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 13px; }
.footer-col a { font-size: 0.9rem; color: var(--gray-light); transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-news h4 { color: var(--white); font-family: 'Space Grotesk', sans-serif; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; margin-bottom: 16px; }
.footer-news p { font-size: 0.9rem; color: var(--gray-light); margin-bottom: 20px; max-width: 300px; }
.newsletter-form { display: flex; border-bottom: 1px solid rgba(255,255,255,0.28); }
.newsletter-form input { flex: 1; padding: 12px 2px; border: none; background: transparent; color: var(--white); font-family: 'Inter', sans-serif; font-size: 0.9rem; font-weight: 300; outline: none; }
.newsletter-form input::placeholder { color: rgba(255,255,255,0.4); }
.newsletter-form button { padding: 12px 8px; background: transparent; border: none; color: var(--white); cursor: pointer; font-size: 1.1rem; transition: transform var(--transition); }
.newsletter-form button:hover { transform: translateX(4px); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* ===== BACK TO TOP & WHATSAPP ===== */
.back-to-top {
    position: fixed; bottom: 96px; right: 30px; width: 46px; height: 46px; background: var(--ink);
    color: var(--white); border: none; font-size: 1.1rem; cursor: pointer;
    opacity: 0; visibility: hidden; transition: all var(--transition);
    z-index: 100; display: flex; align-items: center; justify-content: center; border-radius: var(--radius);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--black); transform: translateY(-3px); }
.whatsapp-btn {
    position: fixed; bottom: 30px; right: 30px; display: flex; align-items: center; gap: 9px;
    padding: 13px 22px; background: #25D366; color: var(--white); font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8rem; font-weight: 500; letter-spacing: 0.04em; z-index: 100;
    transition: all var(--transition); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(37,211,102,0.3);
}
.whatsapp-btn:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(37,211,102,0.42); }
.whatsapp-icon { font-size: 1.1rem; }

/* ===== SCROLL REVEAL ===== */
.reveal { opacity: 0; transform: translateY(44px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .container, .nav-container { padding: 0 28px; }
    .hero { padding-top: 170px; }
    .hero-scroll { display: none; }
    .studio-grid { grid-template-columns: 1fr; gap: 44px; }
    .studio-media { height: 460px; }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .service-row { grid-template-columns: 60px 1fr; gap: 20px 24px; }
    .service-desc { grid-column: 1 / -1; padding-left: 84px; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .process-step { border-top: 1px solid rgba(255,255,255,0.12); }
    .process-step:nth-child(2) { border-right: 1px solid rgba(255,255,255,0.12); }
    .step-num { margin-bottom: 50px; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .team-note { grid-column: 1 / -1; }
    .team-note .team-info { padding: 44px; }
    .contact-grid { grid-template-columns: 1fr; gap: 56px; }
}
@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .hamburger { display: flex; }
    .nav-links.active {
        display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(255,255,255,0.98); backdrop-filter: blur(18px); padding: 30px 28px; gap: 22px;
        border-bottom: 1px solid var(--line);
    }
    .nav-links.active a { font-size: 1rem; }
    .hero { padding-top: 150px; min-height: auto; }
    .hero-media { height: 44vh; min-height: 300px; margin-top: 60px; }
    .hero-media-caption { left: 28px; }
    .marquee-track span { font-size: 1.1rem; }
    .studio, .projects, .services, .team, .contact, .process, .testimonials { padding: 90px 0; }
    .testimonial-nav { margin-top: 36px; }
    .projects-grid { grid-template-columns: 1fr; }
    .project-media { height: 340px; }
    .project-cat, .project-meta { opacity: 1; transform: none; }
    .services-list { border-top: none; }
    .service-row { grid-template-columns: 1fr; gap: 10px; padding: 32px 0; }
    .service-no { font-size: 0.82rem; }
    .service-desc { padding-left: 0; }
    .service-row:hover { padding-left: 0; padding-right: 0; }
    .process-grid { grid-template-columns: 1fr; }
    .process-step, .process-step:nth-child(2), .process-step:last-child { border-right: none; border-left: none; border-bottom: 1px solid rgba(255,255,255,0.12); }
    .step-num { margin-bottom: 30px; }
    .team-grid { grid-template-columns: 1fr; }
    .team-photo { height: 400px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0; }
    .stat { border-bottom: 1px solid var(--line); padding: 30px 20px; }
    .stat:nth-child(2) { border-right: none; }
    .contact-info li { grid-template-columns: 100px 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
    .footer-brand, .footer-news { grid-column: 1 / -1; }
    .whatsapp-text { display: none; }
}
@media (max-width: 480px) {
    .container, .nav-container { padding: 0 20px; }
    .hero-title { font-size: 2.9rem; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .studio-stats { gap: 30px; }
    .ss-num { font-size: 2.2rem; }
    .stats-grid { grid-template-columns: 1fr; }
    .stat, .stat:nth-child(2) { border-right: none; }
    .footer-top { grid-template-columns: 1fr; }
    .contact-info li { grid-template-columns: 1fr; gap: 6px; }
    .team-note h3 { font-size: 1.6rem; }
}