/* ==========================================================================
   BERK ASLAN — BESPOKE EDITORIAL PORTFOLIO & STUDIO STYLESHEET
   Clean, Modern, Human, High-End Engineering Aesthetic
   ========================================================================== */

:root {
  /* Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Dark Theme Palette (Default) */
  --bg-main: #09090b;
  --bg-surface: #121215;
  --bg-surface-hover: #18181b;
  --border-color: #27272a;
  --border-subtle: #1f1f23;
  
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --accent-color: #ffffff;
  --accent-invert: #09090b;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-main: #fcfcfc;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f4f4f5;
  --border-color: #e4e4e7;
  --border-subtle: #f4f4f5;

  --text-primary: #09090b;
  --text-secondary: #52525b;
  --text-muted: #a1a1aa;

  --accent-color: #09090b;
  --accent-invert: #ffffff;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul { list-style: none; }

/* Container */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 110px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-top {
  margin-bottom: 56px;
  max-width: 620px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.88rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.btn-dark {
  background-color: var(--text-primary);
  color: var(--bg-main);
}

.btn-dark:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--bg-surface-hover);
  border-color: var(--text-secondary);
}

/* HEADER & NAV */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 22px 0;
  transition: var(--transition);
}

.header.scrolled {
  padding: 14px 0;
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .header.scrolled {
  background: rgba(252, 252, 252, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--text-primary);
  color: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9rem;
}

.brand-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-item {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-item:hover {
  color: var(--text-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.availability {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #10b981;
}

.availability .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
}

.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.theme-btn:hover {
  background: var(--bg-surface-hover);
}

.light-icon { display: none; }
[data-theme="light"] .dark-icon { display: none; }
[data-theme="light"] .light-icon { display: inline-block; }

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
}

/* HERO SECTION */
.hero {
  padding-top: 170px;
  padding-bottom: 90px;
}

.location-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.location-tag i {
  color: var(--text-muted);
}

.hero-heading {
  font-family: var(--font-heading);
  font-size: 4.2rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.highlight-text {
  color: var(--text-muted);
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
  margin-bottom: 40px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 70px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

.metric-val {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 6px;
}

.metric-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* PROJECTS LIST */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.project-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
  transition: var(--transition);
}

.project-card.reverse {
  grid-template-columns: 1fr 1fr;
}

.project-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

[data-theme="light"] .project-card:hover {
  border-color: rgba(0, 0, 0, 0.2);
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.project-num {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
}

.project-category {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.project-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.project-description {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 24px;
}

.project-features-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.project-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.project-features-list li i {
  color: var(--text-primary);
  margin-top: 4px;
  font-size: 0.75rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.project-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.project-visual {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  height: 100%;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-inner {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.window-top {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--border-color);
}

.w-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-color);
}

.w-url {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.window-body {
  padding: 40px 24px;
  text-align: center;
}

.brand-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ABOUT SECTION */
.about-wrapper {
  display: grid;
  grid-template-columns: 1.1fr 1.9fr;
  gap: 60px;
}

.about-text-lead {
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.about-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* WORKFLOW GRID */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.workflow-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
}

.wf-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.workflow-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.workflow-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* SERVICES ROW */
.services-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 28px;
}

.service-box-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.service-box-header i {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.service-box-header h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}

.service-box p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* CONTACT SECTION */
.contact-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 60px;
}

.contact-heading {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
}

.contact-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 40px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.c-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.c-val {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Form */
.c-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-body);
  transition: var(--transition);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--text-primary);
}

.form-msg {
  font-size: 0.9rem;
  color: #10b981;
  margin-top: 10px;
}

/* FOOTER */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.f-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-right: 16px;
}

.f-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* RESPONSIVE */
@media (max-width: 992px) {
  .hero-heading { font-size: 3.2rem; }
  .project-card, .contact-box, .about-wrapper { grid-template-columns: 1fr; gap: 32px; }
  .workflow-grid, .services-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero-heading { font-size: 2.5rem; }
  .nav { display: none; }
  .menu-btn { display: flex; }
  .workflow-grid, .services-row, .hero-metrics { grid-template-columns: 1fr; }
  .contact-box { padding: 32px; }
  .footer-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
}