/* ════════════════════════════════════════════════════════════
   SLUBIE — Premium Master Stylesheet (Agency Edition)
   ════════════════════════════════════════════════════════════ */

/* ─────────── § 01 — Tokens & Reset ─────────── */
:root {
  --bg: #f5f4f0;
  --bg-soft: #edeae3;
  --bg-dark: #0a0a09;
  --ink: #080808;
  --ink-soft: #1c1c1a;
  --ink-muted: #706c64;
  --accent: #5e5247;
  --accent-light: #b5a89e;
  --line: rgba(8, 8, 8, 0.1);
  --line-light: rgba(255, 255, 255, 0.15);
  --font-serif: 'Fraunces', serif;
  --font-sans: 'Inter', sans-serif;
  --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  width: 100%;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

li { list-style: none; }

/* ─────────── § 02 — Navigation ─────────── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 24px 4%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  mix-blend-mode: difference;
  transition: var(--transition);
}

nav.solid {
  background: rgba(10, 10, 9, 0.95);
  backdrop-filter: blur(10px);
  mix-blend-mode: normal;
  border-bottom: 1px solid var(--line-light);
}

nav.solid .nav-logo, nav.solid .nav-links a, nav.solid .nav-back {
  color: #ffffff;
}

.nav-logo {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.2em;
  color: #ffffff;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #ffffff;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: var(--transition);
}

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

.nav-back {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #ffffff;
  border-bottom: 1px solid rgba(255,255,255,0.4);
  padding-bottom: 2px;
}

/* ─────────── § 03 — Full-Screen Hero ─────────── */
.hero {
  position: relative;
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  padding: 0 6%;
  overflow: hidden;
  background: var(--bg-dark);
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.5) contrast(1.05);
  transform: scale(1.05);
  animation: heroReveal 2.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(10,10,9,0.85) 0%, rgba(10,10,9,0.3) 50%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 900px;
  color: #ffffff;
}

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--accent-light);
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(56px, 10vw, 120px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

.hero-services {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 24px);
  margin-bottom: 24px;
  color: rgba(255,255,255,0.85);
}

.hero-services .separator {
  color: var(--accent-light);
  margin: 0 8px;
  font-style: italic;
}

.hero-locations {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.2vw, 28px);
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  display: inline-block;
}

.hero-locations .dot { color: var(--accent-light); margin: 0 10px; }
.hero-locations .worldwide { font-style: italic; color: var(--accent-light); }

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ─────────── § 04 — Buttons ─────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 36px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  border-radius: 0;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: #ffffff;
  color: var(--bg-dark);
  border: 1px solid #ffffff;
}

.btn-primary:hover {
  background: transparent;
  color: #ffffff;
}

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
  background: #ffffff;
  color: var(--bg-dark);
  border-color: #ffffff;
}

.btn-dark {
  background: var(--bg-dark);
  color: #ffffff;
  border: 1px solid var(--bg-dark);
}

.btn-dark:hover {
  background: transparent;
  color: var(--bg-dark);
}

/* ─────────── § 05 — About Section ─────────── */
.about {
  padding: 140px 6%;
  background: var(--bg);
}

.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-eyebrow {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.about-statement {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.2;
  font-weight: 300;
  letter-spacing: -0.01em;
  margin-bottom: 40px;
}

.about-statement em {
  font-style: italic;
  color: var(--accent);
}

.about-paragraph {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 540px;
}

.about-images {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
}

.about-img-main {
  grid-column: 1 / 10;
  z-index: 2;
  box-shadow: 0 30px 60px rgba(0,0,0,0.05);
}

.about-img-accent {
  grid-column: 7 / -1;
  margin-top: 40%;
  z-index: 3;
  border: 12px solid var(--bg);
  box-shadow: 0 40px 80px rgba(0,0,0,0.1);
}

/* ─────────── § 06 — Services ─────────── */
.services {
  padding: 140px 6%;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.section-header {
  margin-bottom: 80px;
}

.section-eyebrow {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 300;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.service-card {
  background: var(--bg);
  padding: 48px;
  border: 1px solid rgba(0,0,0,0.03);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.02);
}

.service-num {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--accent-light);
  font-style: italic;
  margin-bottom: 32px;
  display: block;
}

.service-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 400;
  margin-bottom: 16px;
}

.service-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ─────────── § 07 — Portfolio / Work ─────────── */
.work {
  padding: 140px 6%;
  background: var(--bg);
}

.case-list {
  display: flex;
  flex-direction: column;
  gap: 120px;
}

.case-study {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.case-study:nth-child(even) {
  grid-template-columns: 0.9fr 1.1fr;
}

.case-study:nth-child(even) .case-image-wrap {
  order: 2;
}

.case-image-wrap {
  position: relative;
  overflow: hidden;
}

.case-image {
  width: 100%;
  height: 650px;
  background: #1a1a19;
  position: relative;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.case-study:hover .case-image img {
  transform: scale(1.05);
}

.case-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.2);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.case-image-label {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(10,10,9,0.75);
  backdrop-filter: blur(5px);
  color: #fff;
  padding: 8px 16px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-number {
  position: absolute;
  right: -20px;
  top: -40px;
  font-family: var(--font-serif);
  font-size: 140px;
  font-weight: 400;
  color: rgba(0,0,0,0.03);
  pointer-events: none;
  line-height: 1;
}

.case-content {
  padding: 20px 0;
}

.case-eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.case-logo {
  height: 32px;
  margin-bottom: 24px;
}

.case-logo img {
  height: 100%;
  width: auto;
  filter: grayscale(100%) brightness(0.2);
  opacity: 0.8;
}

.case-brand {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 300;
  margin-bottom: 16px;
}

.case-brand em { font-style: italic; }
.case-tagline {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 32px;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.meta-item label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  display: block;
  margin-bottom: 4px;
}

.meta-item span {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}

/* ─────────── § 08 — Brands Section ─────────── */
.brands-section {
  padding: 100px 6%;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  text-align: center;
}

.brands-title {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 48px;
}

.brands-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 48px;
  align-items: center;
}

.brand-item {
  display: flex;
  justify-content: center;
  opacity: 0.4;
  transition: var(--transition);
}

.brand-item:hover { opacity: 1; }
.brand-item img { max-height: 30px; filter: grayscale(100%); }

/* ─────────── § 09 — CTA Strip ─────────── */
.cta-strip {
  background: var(--bg-dark);
  color: #ffffff;
  padding: 120px 0;
  border-bottom: 1px solid var(--line-light);
}

.cta-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 4%;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 64px;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 300;
  line-height: 1.1;
}

.cta-title em { font-style: italic; color: var(--accent-light); }
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
}

/* ─────────── § 10 — Footer ─────────── */
footer {
  background: var(--bg-dark);
  color: #ffffff;
  padding: 100px 0 40px;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 4%;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--line-light);
  margin-bottom: 40px;
}

.footer-brand .footer-logo {
  font-size: 24px;
  letter-spacing: 0.2em;
  font-weight: 600;
  margin-bottom: 16px;
  display: block;
}

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 14px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-light);
  margin-bottom: 24px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-col ul a:hover { color: #fff; }

.city-block { margin-bottom: 16px; }
.city-name { font-size: 14px; font-weight: 600; display: block; }
.city-detail { font-size: 12px; color: rgba(255,255,255,0.4); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.signature { font-style: italic; font-family: var(--font-serif); }

/* ─────────── § 11 — Interactive Form Pages ─────────── */
.form-page {
  display: grid;
  grid-template-columns: 420px 1fr;
  min-height: 100vh;
  background: var(--bg);
}

.form-page-left {
  position: relative;
  background: var(--bg-dark);
  color: #fff;
  padding: 60px 40px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.left-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.4) grayscale(100%);
  z-index: 1;
}

.left-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,9,0.95), rgba(10,10,9,0.4));
  z-index: 2;
}

.left-content { position: relative; z-index: 3; }
.left-eyebrow { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--accent-light); margin-bottom: 16px; }
.left-title { font-family: var(--font-serif); font-size: 36px; font-weight: 300; margin-bottom: 16px; }
.left-text { font-size: 14px; line-height: 1.6; color: rgba(255,255,255,0.7); }

.form-page-main { padding: 100px 8% 60px; }
.form-container { max-width: 800px; }
.form-header-block { margin-bottom: 56px; }
.form-subtitle { font-size: 14px; color: var(--ink-muted); margin-top: 8px; }

.form-section {
  margin-bottom: 56px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}

.form-section-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  margin-bottom: 24px;
}

.fields-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.field.full { grid-column: span 2; }

label.field-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 8px;
}

input[type="text"], input[type="email"], input[type="tel"], input[type="number"], select, textarea {
  width: 100%;
  padding: 16px;
  background: var(--bg-soft);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #ffffff;
}

.radio-group { display: flex; gap: 24px; margin-top: 8px; }
.radio-label { display: flex; align-items: center; gap: 8px; font-size: 15px; cursor: pointer; }

.file-upload {
  position: relative;
  border: 1px dashed var(--accent-light);
  background: var(--bg-soft);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.file-upload:hover { background: #fff; border-color: var(--ink); }
.file-upload-icon { font-size: 24px; color: var(--accent); margin-bottom: 8px; }
.file-upload-text { font-size: 14px; font-weight: 500; }
.file-upload-hint { font-size: 12px; color: var(--ink-muted); margin-top: 4px; }
.file-upload input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.privacy-notice { background: var(--bg-soft); padding: 24px; border-left: 3px solid var(--accent); margin-top: 24px; }
.privacy-notice-title { font-size: 13px; font-weight: 600; text-transform: uppercase; margin-bottom: 4px; }
.privacy-notice-text { font-size: 13px; line-height: 1.5; color: var(--ink-muted); }

.form-footer { border-top: 1px solid var(--line); padding-top: 32px; }
.consent { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 20px; font-size: 13px; line-height: 1.5; color: var(--ink-soft); }
.consent input { margin-top: 4px; }

.submit-row { display: flex; justify-content: space-between; align-items: center; margin-top: 40px; }
.submit-note { font-size: 13px; font-style: italic; color: var(--ink-muted); }
.btn-submit { background: var(--bg-dark); color: #fff; border: none; padding: 20px 40px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.2em; cursor: pointer; transition: var(--transition); }
.btn-submit:hover { background: var(--accent); }

/* Conditional Form Logic Display */
.conditional-section { display: none; }
.conditional-section.visible { display: block; animation: fadeIn 0.6s ease forwards; }

/* ─────────── § 12 — Animations & Reveals ─────────── */
@keyframes heroReveal {
  to { transform: scale(1); filter: brightness(0.45) contrast(1); }
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─────────── § 13 — Responsive ─────────── */
@media (max-width: 1024px) {
  .about-inner, .cta-inner { grid-template-columns: 1fr; gap: 48px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .case-study, .case-study:nth-child(even) { grid-template-columns: 1fr; gap: 32px; }
  .case-study:nth-child(even) .case-image-wrap { order: 1; }
  .form-page { grid-template-columns: 1fr; }
  .form-page-left { height: 300px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 3px;
  cursor: pointer;
  z-index: 101;
  padding: 0;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background-color: #ffffff;
  transition: 0.3s;
  border-radius: 2px;
}

@media (max-width: 768px) {
  nav { 
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    background: #0a0a09 !important;
    padding: 16px 6% !important;
    box-shadow: none !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03) !important;
  }
  
  .hamburger { display: flex; }
  
  .nav-links { 
    position: fixed; 
    top: 55px;
    left: 4%;
    width: 92%;
    background: #0a0a09;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    flex-direction: column; 
    padding: 32px 0;
    gap: 28px;
    text-align: center; 
    opacity: 0; 
    visibility: hidden; 
    transform: translateY(-5px);
    transition: all 0.3s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
  }
  
  .nav-links.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .services-grid, .brands-grid { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
  .fields-grid .field { grid-column: span 2; }
  .submit-row { flex-direction: column; align-items: flex-start; gap: 20px; }
  .btn-submit { width: 100%; text-align: center; }
  
  .footer-top { 
    grid-template-columns: 1fr;
    gap: 40px; 
    text-align: center; 
  }
  .footer-brand p { 
    margin: 0 auto;
  }
  .footer-col ul {
    align-items: center;
  }
  .footer-bottom { 
    flex-direction: column; 
    gap: 16px; 
    text-align: center; 
  }
}