/* =============================================
   KAHRAMAN CONSULTING — style.css
   Dark / Light mode + full design system
   ============================================= */

/* ── Design tokens: DARK mode (default) ── */
:root {
  --forest:      #082419;
  --forest-mid:  #0F3526;
  --forest-light:#164D37;
  --turq:        #00D4AA;
  --turq-dim:    #00B894;
  --turq-glow:   rgba(0,212,170,0.18);
  --mint:        #A8F0E0;
  --white:       #FFFFFF;

  --bg-page:     #082419;
  --bg-section:  #082419;
  --bg-section-alt: #0F3526;
  --bg-card:     #164D37;
  --bg-input:    #0F3526;

  --text-primary:   #FFFFFF;
  --text-secondary: #A8C4BC;
  --text-muted:     #7BA898;

  --border-color:   rgba(0,212,170,0.18);
  --border-input:   rgba(0,212,170,0.25);

  --sstrip-bg:   var(--turq);
  --sstrip-text: #082419;
  --sstrip-sub:  #0F3526;

  --sqb-bg:      linear-gradient(135deg,#082419,#0F3526);
  --sqb-border:  rgba(0,212,170,0.2);
  --sqb-text:    #A8C4BC;

  --nav-bg:      rgba(8,36,25,0.97);
  --footer-bg:   #082419;
  --footer-border: rgba(0,212,170,0.1);

  --shadow:      0 8px 32px rgba(0,0,0,0.35);

  --ff-display: 'DM Serif Display', Georgia, serif;
  --ff-body:    'DM Sans', system-ui, sans-serif;
  --max-w:      1120px;
  --radius:     14px;
  --radius-sm:  7px;
  --transition: 0.25s ease;
  --section-pad:6rem;
}

/* ── LIGHT mode overrides ── */
[data-theme="light"] {
  --bg-page:        #F2FAF7;
  --bg-section:     #F2FAF7;
  --bg-section-alt: #FFFFFF;
  --bg-card:        #FFFFFF;
  --bg-input:       #FFFFFF;

  --text-primary:   #082419;
  --text-secondary: #1A3D30;
  --text-muted:     #5A7A70;

  --border-color:   #C8E8DC;
  --border-input:   #A8D4C4;

  --sstrip-bg:   var(--turq);
  --sstrip-text: #082419;
  --sstrip-sub:  #0F3526;

  --sqb-bg:      linear-gradient(135deg,#082419,#0F3526);
  --sqb-border:  rgba(0,212,170,0.25);
  --sqb-text:    #A8C4BC;

  --nav-bg:      rgba(8,36,25,0.97);
  --footer-bg:   #082419;
  --footer-border: rgba(0,212,170,0.12);

  --shadow:      0 4px 20px rgba(8,36,25,0.1);

  --forest-light: #164D37;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-body);
  color: var(--text-secondary);
  background: var(--bg-page);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.section { padding: var(--section-pad) 0; background: var(--bg-section); }
.section-alt { background: var(--bg-section-alt); }
.section-dark { background: var(--forest); }

.section-eyebrow {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--turq); margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15; color: var(--text-primary); margin-bottom: 1rem;
}
.title-light { color: #fff !important; }
.section-sub { font-size: 1.05rem; color: var(--text-muted); max-width: 560px; margin-bottom: 3rem; line-height: 1.7; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.85rem; border-radius: var(--radius-sm);
  font-family: var(--ff-body); font-size: 0.9rem; font-weight: 600;
  cursor: pointer; border: 2px solid transparent;
  transition: all var(--transition);
}
.btn-primary { background: var(--turq); color: var(--forest); border-color: var(--turq); }
.btn-primary:hover { background: var(--turq-dim); border-color: var(--turq-dim); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,212,170,0.35); }
.btn-ghost  { background: transparent; color: #fff; border-color: rgba(255,255,255,0.35); }
.btn-ghost:hover  { border-color: var(--turq); color: var(--turq); }
.btn-full   { width: 100%; justify-content: center; }

/* ── THEME TOGGLE ── */
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: rgba(0,212,170,0.1);
  border: 1px solid rgba(0,212,170,0.3);
  border-radius: 50%; cursor: pointer; color: var(--turq);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover { background: rgba(0,212,170,0.2); transform: rotate(20deg); }

/* ── NAVBAR ── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1rem 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  padding: 0.6rem 0;
  box-shadow: 0 2px 30px rgba(0,0,0,0.3);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.nav-logo { display: flex; align-items: baseline; gap: 0.1rem; font-size: 1.15rem; }
.logo-k    { font-family: var(--ff-display); font-size: 1.5rem; color: var(--turq); }
.logo-rest { font-family: var(--ff-display); color: #fff; }
.logo-tag  { font-family: var(--ff-body); font-size: 0.68rem; color: #7BA898; margin-left: 0.5rem; letter-spacing: 0.06em; }

.nav-right { display: flex; align-items: center; gap: 0.25rem; }
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-link  { color: #A8C4BC; font-size: 0.88rem; padding: 0.4rem 0.75rem; border-radius: var(--radius-sm); transition: color var(--transition); }
.nav-link:hover { color: #fff; }
.nav-cta   { color: var(--forest) !important; background: var(--turq); padding: 0.45rem 1.1rem; font-weight: 600; margin-left: 0.25rem; border-radius: var(--radius-sm); }
.nav-cta:hover { background: var(--turq-dim) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all var(--transition); }

/* ── HERO ── */
#hero {
  position: relative; min-height: 100vh;
  background: var(--forest);
  display: flex; align-items: center; overflow: hidden;
}
#hero::before {
  content: ''; position: absolute;
  top: 15%; left: -5%; width: 55%; height: 70%;
  background: radial-gradient(ellipse, rgba(0,212,170,0.07) 0%, transparent 70%);
  pointer-events: none;
}
#hero-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
  cursor: crosshair;
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--max-w); margin: 0 auto;
  padding: 8rem 2rem 6rem; width: 100%;
}
.hero-eyebrow {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--turq); margin-bottom: 1.25rem;
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.7s ease 0.2s forwards;
}
.swiss-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: rgba(0,212,170,0.12); border: 1px solid rgba(0,212,170,0.3);
  border-radius: 20px; padding: 0.25rem 0.75rem;
  font-size: 0.68rem; color: var(--turq); letter-spacing: 0.08em;
}
.swiss-cross { display: inline-flex; align-items: center; justify-content: center; width: 14px; height: 14px; position: relative; flex-shrink: 0; }
.swiss-cross::before, .swiss-cross::after { content: ''; position: absolute; background: var(--turq); border-radius: 1px; }
.swiss-cross::before { width: 14px; height: 4px; }
.swiss-cross::after  { width: 4px;  height: 14px; }

.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 6.5vw, 5rem); line-height: 1.07;
  color: #fff; margin-bottom: 1.5rem; max-width: 680px;
  opacity: 0; animation: fadeUp 0.7s ease 0.35s forwards;
}
.hero-title em { font-style: italic; color: var(--turq); }
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem); color: #A8C4BC;
  line-height: 1.8; max-width: 560px; margin-bottom: 2.5rem;
  opacity: 0; animation: fadeUp 0.7s ease 0.5s forwards;
}
.hero-actions {
  display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 4rem;
  opacity: 0; animation: fadeUp 0.7s ease 0.65s forwards;
}
.hero-stats {
  display: flex; align-items: center; gap: 2rem;
  opacity: 0; animation: fadeUp 0.7s ease 0.8s forwards;
}
.stat { display: flex; flex-direction: column; gap: 0.2rem; }
.stat-num   { font-family: var(--ff-display); font-size: 2rem; color: #fff; line-height: 1; }
.stat-plus  { color: var(--turq); font-size: 1.2rem; }
.stat-label { font-size: 0.75rem; color: #7BA898; letter-spacing: 0.02em; }
.stat-divider { width: 1px; height: 2.5rem; background: rgba(255,255,255,0.12); }

.canvas-hint {
  position: absolute; bottom: 2rem; right: 2rem; z-index: 3;
  opacity: 0; animation: fadeIn 1.2s ease 1.5s forwards;
  text-align: right;
}
.canvas-hint p { font-size: 0.65rem; color: #7BA898; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1.6; }

/* ── SWISS STRIP ── */
.swiss-strip { background: var(--sstrip-bg); padding: 2.5rem 0; }
.swiss-strip-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 2rem;
  display: grid; grid-template-columns: repeat(4,1fr); gap: 2rem; align-items: center;
}
.swiss-pillar { text-align: center; }
.swiss-pillar-icon { font-size: 1.6rem; margin-bottom: 0.5rem; }
.swiss-pillar strong { display: block; font-size: 0.85rem; color: var(--sstrip-text); font-weight: 700; margin-bottom: 0.2rem; }
.swiss-pillar span   { font-size: 0.75rem; color: var(--sstrip-sub); }

/* ── ABOUT ── */
.about-grid { display: grid; grid-template-columns: 1fr; max-width: 720px; }
.about-body { font-size: 1.05rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 1.25rem; }
.about-body strong { color: var(--text-primary); }

.sqb {
  background: var(--sqb-bg); border-radius: var(--radius); padding: 2rem;
  margin-top: 2rem; border: 1px solid var(--sqb-border); position: relative; overflow: hidden;
}
.sqb::before { content: '✦'; position: absolute; right: 1.5rem; top: 1rem; font-size: 4rem; color: rgba(0,212,170,0.05); pointer-events: none; }
.sqb-head  { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.sqb-x     { width: 28px; height: 28px; position: relative; flex-shrink: 0; }
.sqb-x::before, .sqb-x::after { content: ''; position: absolute; background: var(--turq); border-radius: 2px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.sqb-x::before { width: 28px; height: 9px; }
.sqb-x::after  { width: 9px;  height: 28px; }
.sqb-title { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--turq); }
.sqb-list li {
  font-size: 0.82rem; color: var(--sqb-text); padding: 0.35rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; gap: 0.6rem;
}
.sqb-list li:last-child { border-bottom: none; }
.sqb-list li::before { content: '✓'; color: var(--turq); font-weight: 700; font-size: 0.75rem; flex-shrink: 0; }

/* ── SERVICES ── */
.services-market-note { font-size: 0.85rem; color: #A8C4BC; margin-bottom: 2rem; font-style: italic; }
.services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; }

.service-card {
  position: relative; background: var(--bg-card);
  border: 1px solid var(--border-color); border-radius: var(--radius);
  padding: 2rem; overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
[data-theme="light"] .service-card { box-shadow: var(--shadow); }

.service-card::before {
  content: attr(data-index); position: absolute; top: 1rem; right: 1.5rem;
  font-family: var(--ff-display); font-size: 3.5rem; color: rgba(0,212,170,0.05); line-height: 1; pointer-events: none;
}
.service-card:hover { border-color: var(--turq); transform: translateY(-3px); box-shadow: 0 16px 40px rgba(0,0,0,0.2), 0 0 0 1px var(--turq), 0 0 30px rgba(0,212,170,0.1); }
.service-card--featured { border-color: rgba(0,212,170,0.3); }
.service-card--featured::after {
  content: '★ In demand'; position: absolute; top: 1rem; right: 1rem;
  font-size: 0.6rem; font-weight: 700; letter-spacing: 0.08em;
  color: var(--forest); background: var(--turq);
  padding: 0.2rem 0.55rem; border-radius: 20px;
}
.service-demand { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--turq); margin-bottom: 0.6rem; opacity: 0.85; }
.service-icon { font-size: 1.75rem; margin-bottom: 1rem; }
.service-card h3 { font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.75rem; line-height: 1.3; }
.service-card p  { font-size: 0.875rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 1.25rem; }
.service-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.service-tags li { font-size: 0.68rem; font-weight: 600; padding: 0.2rem 0.6rem; border-radius: 20px; background: rgba(0,212,170,0.1); color: var(--turq); border: 1px solid rgba(0,212,170,0.25); }

/* ── CONTACT ── */
.contact-grid { display: grid; grid-template-columns: 300px 1fr; gap: 5rem; align-items: start; margin-top: 2rem; }
.contact-person { display: flex; align-items: center; gap: 1rem; margin-bottom: 2rem; }
.contact-avatar { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--turq), #0F3526); display: flex; align-items: center; justify-content: center; font-family: var(--ff-display); font-size: 1.1rem; color: #fff; flex-shrink: 0; }
.contact-person strong { font-size: 0.95rem; color: var(--text-primary); display: block; }
.contact-person span   { font-size: 0.82rem; color: var(--text-muted); }
.contact-details { display: flex; flex-direction: column; gap: 0.75rem; }
.contact-row { display: flex; align-items: center; gap: 0.75rem; font-size: 0.88rem; color: var(--text-secondary); padding: 0.6rem 0.75rem; border-radius: var(--radius-sm); border: 1px solid var(--border-color); transition: border-color var(--transition), background var(--transition); }
a.contact-row:hover { border-color: var(--turq); background: rgba(0,212,170,0.05); }
.contact-icon { font-size: 1rem; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.78rem; font-weight: 600; color: var(--text-primary); }
.input-wrap { position: relative; }

.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: var(--ff-body); font-size: 0.9rem; padding: 0.75rem 1rem;
  border-radius: var(--radius-sm); border: 1.5px solid var(--border-input);
  background: var(--bg-input); color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition); outline: none;
  width: 100%;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { border-color: var(--turq); box-shadow: 0 0 0 3px rgba(0,212,170,0.12); }
.contact-form input.is-valid,
.contact-form select.is-valid,
.contact-form textarea.is-valid { border-color: rgba(0,212,170,0.85); }
.field-status {
  position: absolute; right: 0.8rem; top: 50%; transform: translateY(-50%);
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 1rem; font-size: 0.95rem; line-height: 1;
  color: transparent; pointer-events: none; transition: color var(--transition);
}
.field-status.valid { color: var(--turq); }
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237BA898' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem;
}
[data-theme="light"] .contact-form input,
[data-theme="light"] .contact-form select,
[data-theme="light"] .contact-form textarea { background: #fff; }

.form-note { font-size: 0.75rem; color: var(--text-muted); text-align: center; }
.form-success { display: none; padding: 2rem; border-radius: var(--radius); background: rgba(0,212,170,0.08); border: 1px solid rgba(0,212,170,0.3); text-align: center; color: var(--turq); font-size: 0.95rem; }

/* ── FOOTER ── */
footer { background: var(--footer-bg); border-top: 1px solid var(--footer-border); padding: 3rem 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; text-align: center; }
.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; font-size: 1.1rem; }
.footer-brand p { font-size: 0.8rem; color: #7BA898; line-height: 1.6; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; justify-content: center; }
.footer-links a { font-size: 0.82rem; color: #7BA898; transition: color var(--transition); }
.footer-links a:hover { color: var(--turq); }
.footer-copy { font-size: 0.72rem; color: #5A7A70; }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
.reveal { opacity:0; transform:translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration:0.01ms !important; transition-duration:0.01ms !important; } }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2,1fr); }
  .swiss-strip-inner { grid-template-columns: repeat(2,1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}
@media (max-width: 768px) {
  :root { --section-pad: 4rem; }
  .hamburger { display: flex; }
  .nav-links {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: #082419; flex-direction: column; justify-content: center;
    align-items: center; gap: 1.5rem; z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 1.2rem; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
  .stat-divider { display: none; }
  .canvas-hint { display: none; }
  .swiss-strip-inner { grid-template-columns: repeat(2,1fr); gap: 1.5rem; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .swiss-strip-inner { grid-template-columns: 1fr; }
}

/* ── IMPRESSUM ── */
.impressum-content {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 1.5rem;
}
.impressum-block h3 {
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--turq); margin-bottom: 0.75rem;
}
.impressum-block p {
  font-size: 0.9rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 0.4rem;
}
@media (max-width: 640px) {
  .impressum-content { grid-template-columns: 1fr; gap: 2rem; }
}