/* ═══════════════════════════════════════════════════════════════
   NEON CREATIVO — styles.css
   Paleta: #0b0f19 (fondo), #00e5ff (cian), #bd00ff (púrpura)
   Fuentes: Orbitron (display) + Barlow / Barlow Condensed (body)
═══════════════════════════════════════════════════════════════ */

/* ── 1. CSS CUSTOM PROPERTIES ──────────────────────────────── */
:root {
  --bg-deep:        #0b0f19;
  --bg-mid:         #0f1525;
  --bg-card:        #131929;
  --bg-card-hover:  #192035;

  --cyan:           #00e5ff;
  --cyan-dim:       #00b8cc;
  --cyan-glow:      rgba(0, 229, 255, 0.25);
  --cyan-glow-lg:   rgba(0, 229, 255, 0.12);

  --purple:         #bd00ff;
  --purple-dim:     #9400cc;
  --purple-glow:    rgba(189, 0, 255, 0.25);
  --purple-glow-lg: rgba(189, 0, 255, 0.10);

  --red-neon:       #ff2d55;
  --green-neon:     #00ff9f;
  --blue-neon:      #0066ff;

  --white:          #ffffff;
  --gray-light:     #c8d0e0;
  --gray-mid:       #7a8399;
  --gray-dark:      #3a4260;
  --border-subtle:  rgba(255,255,255,0.06);

  --whatsapp:       #25d366;

  --font-display:   'Orbitron', monospace;
  --font-body:      'Barlow', sans-serif;
  --font-condensed: 'Barlow Condensed', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --trans-fast: 0.18s ease;
  --trans-mid:  0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-h: 72px;
  --section-pad: clamp(80px, 10vw, 140px) clamp(20px, 6vw, 80px);
}

/* ── 2. RESET & BASE ───────────────────────────────────────── */
*, *::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-deep);
  color: var(--gray-light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; border: none; background: none; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
input, textarea, select { font-family: inherit; -webkit-tap-highlight-color: transparent; }
ul { list-style: none; }
a { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }

/* ── 3. SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--purple-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--purple); }

/* ── 4. KEYFRAME ANIMATIONS ────────────────────────────────── */

/* Neon flickering title */
@keyframes neon-flicker-cyan {
  0%,19%,21%,23%,25%,54%,56%,100% {
    text-shadow:
      0 0 7px #fff,
      0 0 10px #fff,
      0 0 21px #fff,
      0 0 42px var(--cyan),
      0 0 82px var(--cyan),
      0 0 92px var(--cyan),
      0 0 102px var(--cyan),
      0 0 151px var(--cyan);
    opacity: 1;
  }
  20%,24%,55% {
    text-shadow: none;
    opacity: 0.85;
  }
}

@keyframes neon-flicker-purple {
  0%,18%,22%,51%,53%,100% {
    text-shadow:
      0 0 7px #fff,
      0 0 10px #fff,
      0 0 21px #fff,
      0 0 42px var(--purple),
      0 0 82px var(--purple),
      0 0 92px var(--purple),
      0 0 102px var(--purple),
      0 0 151px var(--purple);
    opacity: 1;
  }
  19%,52% {
    text-shadow: none;
    opacity: 0.8;
  }
}

@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(2.2); opacity: 0; }
}

@keyframes float-up-down {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-12px); }
}

@keyframes spark-fly {
  0%   { transform: scale(1) translate(0,0); opacity: 1; }
  100% { transform: scale(0) translate(var(--tx), var(--ty)); opacity: 0; }
}

@keyframes scan-line {
  0%   { top: -10%; }
  100% { top: 110%; }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes count-up { to { opacity: 1; } }

@keyframes border-flow {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes grid-pulse {
  0%,100% { opacity: 0.3; }
  50%     { opacity: 0.55; }
}

@keyframes scroll-line {
  0%   { height: 0; opacity: 1; }
  100% { height: 60px; opacity: 0; }
}

/* ── 5. HEADER / NAV ───────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  background: rgba(11, 15, 25, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--trans-mid), box-shadow var(--trans-mid);
}

.site-header.scrolled {
  background: rgba(11, 15, 25, 0.92);
  box-shadow: 0 0 30px rgba(0,0,0,0.5), 0 1px 0 var(--border-subtle);
}

.nav-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 900;
  letter-spacing: 0.05em;
  white-space: nowrap;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0;
  transition: var(--trans-fast);
}
.logo-bracket { color: var(--purple); opacity: 0.7; }
.logo-main    { color: var(--white); }
.logo-accent  { color: var(--cyan); }
.logo:hover .logo-main { text-shadow: 0 0 20px var(--cyan); }

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.5vw, 8px);
}

.nav-link {
  font-family: var(--font-condensed);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-mid);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  position: relative;
  cursor: pointer;
  transition: color var(--trans-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 14px; right: 14px;
  height: 1.5px;
  background: var(--cyan);
  transform: scaleX(0);
  transition: transform var(--trans-mid);
  border-radius: 2px;
}
.nav-link:hover          { color: var(--white); }
.nav-link:hover::after   { transform: scaleX(1); }
.nav-link.active         { color: var(--cyan); }
.nav-link.active::after  { transform: scaleX(1); }

.nav-cta {
  font-family: var(--font-condensed);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--cyan);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--trans-fast), box-shadow var(--trans-fast), transform var(--trans-fast);
}
.nav-cta:hover {
  background: var(--white);
  box-shadow: 0 0 20px var(--cyan);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--gray-light);
  border-radius: 2px;
  transition: var(--trans-mid);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 6. SPA SECTIONS ───────────────────────────────────────── */
.section {
  display: none;
  min-height: 100vh;
  padding-top: var(--nav-h);
  animation: fade-in-up 0.5s ease both;
}
.section.active { display: block; }

.section-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--section-pad);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(48px, 7vw, 80px);
}
.section-tag {
  display: inline-block;
  font-family: var(--font-condensed);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--purple);
  border: 1px solid var(--purple-glow);
  background: var(--purple-glow-lg);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--gray-mid);
  max-width: 540px;
  margin: 0 auto;
}
.highlight-cyan   { color: var(--cyan);   text-shadow: 0 0 30px var(--cyan-glow); }
.highlight-purple { color: var(--purple); text-shadow: 0 0 30px var(--purple-glow); }

/* ── 7. HERO SECTION ───────────────────────────────────────── */
#sec-inicio {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(32px, 5vw, 80px);
  padding: var(--nav-h) clamp(20px, 6vw, 80px) clamp(60px, 8vw, 100px);
  max-width: 1320px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}

/* Decorative grid bg */
.hero-bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: grid-pulse 6s ease-in-out infinite;
}

.hero-scan-line {
  position: fixed;
  left: 0; right: 0; top: -10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,0.15), transparent);
  animation: scan-line 8s linear infinite;
  pointer-events: none;
  z-index: -1;
}

.hero-content { grid-column: 1; }
.hero-visual   { grid-column: 2; display: flex; flex-direction: column; align-items: center; gap: 32px; }

.hero-eyebrow {
  font-family: var(--font-condensed);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-dim);
  margin-bottom: 20px;
}

.hero-title {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.flicker-line {
  display: block;
  color: var(--white);
  text-shadow: 0 0 7px rgba(255,255,255,0.3);
}
.flicker-line.accent-cyan {
  color: var(--cyan);
  animation: neon-flicker-cyan 5s infinite;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--gray-mid);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 56px;
}

/* Hero stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
}
.stat-item > span:first-child,
.stat-item > span:nth-child(2) {
  display: inline;
}
.stat-number {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--cyan);
  line-height: 1;
}
.stat-item > span:nth-child(2) {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--cyan);
  font-weight: 900;
}
.stat-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--gray-mid);
  text-transform: uppercase;
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--gray-dark);
  flex-shrink: 0;
}

/* ── CREATIVO NEON — logo sign recreado como cartel neon ── */
.cn-logo-sign {
  position: relative;
  width: min(clamp(240px, 40vw, 420px), 88vw);
  height: min(clamp(140px, 22vw, 240px), 52vw);
  animation: float-up-down 4s ease-in-out infinite;
  margin: 0 auto;
}

.cn-oval-outer {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow:
    0 0 20px rgba(0,229,255,0.9),
    0 0 50px rgba(0,229,255,0.55),
    0 0 100px rgba(0,229,255,0.25),
    inset 0 0 40px rgba(0,229,255,0.3);
  animation: neon-flicker-cyan 6s infinite;
}

.cn-oval-inner {
  position: absolute;
  inset: clamp(14px,4%,22px) clamp(28px,9%,48px);
  border-radius: 50%;
  background: linear-gradient(160deg, #ffffff 60%, #e8feff 100%);
  box-shadow:
    0 0 30px rgba(255,255,255,0.5),
    inset 0 2px 14px rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cn-text-group {
  text-align: center;
  line-height: 1;
  user-select: none;
}

.cn-text-main {
  display: block;
  font-family: var(--font-display);
  /* AGRANDADO: El máximo sube de 2.2rem a 3.1rem para llenar el óvalo */
  font-size: clamp(1.6rem, 5vw, 3.1rem);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.03em;
  text-shadow:
    0 0 6px rgba(0,229,255,0.9),
    0 0 16px rgba(0,229,255,0.55),
    0 0 32px rgba(0,229,255,0.25);
  animation: neon-flicker-cyan 5s infinite 0.5s;
}

.cn-dot { color: var(--cyan); font-size: 1.1em; }

.cn-text-script {
  display: block;
  font-family: 'Dancing Script', cursive;
  /* AGRANDADO: El máximo sube de 1.7rem a 2.4rem */
  font-size: clamp(1.3rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--purple);
  text-shadow:
    0 0 6px rgba(189,0,255,0.9),
    0 0 16px rgba(189,0,255,0.5),
    0 0 32px rgba(189,0,255,0.25);
  /* Se junta un poco más hacia arriba (-8px) para que no se salga por abajo del óvalo */
  margin-top: -8px; 
  text-align: right;
  padding-right: clamp(15px, 6%, 45px);
  animation: neon-flicker-purple 7s infinite 1.2s;
}

.cn-glow-floor {
  position: absolute;
  bottom: -28px;
  left: 15%; right: 15%;
  height: 20px;
  background: radial-gradient(ellipse at center, rgba(0,229,255,0.35) 0%, transparent 70%);
  filter: blur(6px);
  border-radius: 50%;
  pointer-events: none;
}

/* Sparks */
.neon-sparks { position: absolute; inset: 0; pointer-events: none; }
.spark {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: spark-fly 2s ease-out infinite;
}
.s1 { top: 10%; left: 10%; --tx: -20px; --ty: -30px; animation-delay: 0s; }
.s2 { top: 20%; right: 10%; --tx: 15px; --ty: -25px; animation-delay: 0.7s; background: var(--purple); box-shadow: 0 0 8px var(--purple); }
.s3 { bottom: 15%; left: 20%; --tx: -15px; --ty: 20px; animation-delay: 1.4s; }
.s4 { bottom: 10%; right: 15%; --tx: 20px; --ty: 15px; animation-delay: 0.35s; background: var(--purple); box-shadow: 0 0 8px var(--purple); }

/* Brand tags */
.hero-brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.brand-tag {
  font-family: var(--font-condensed);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-mid);
  border: 1px solid var(--gray-dark);
  padding: 5px 14px;
  border-radius: 20px;
  transition: var(--trans-fast);
}
.brand-tag:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 12px var(--cyan-glow);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-condensed);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-dark);
}
.scroll-line {
  width: 1px;
  height: 0;
  background: var(--cyan);
  animation: scroll-line 2s ease-in-out infinite;
}

/* ── 8. BUTTONS ────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-condensed);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--cyan);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast), box-shadow var(--trans-fast), transform var(--trans-fast);
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.15);
  opacity: 0;
  transition: opacity var(--trans-fast);
}
.btn-primary:hover { background: #00f5ff; box-shadow: 0 0 30px var(--cyan-glow), 0 0 60px var(--cyan-glow); transform: translateY(-2px); }
.btn-primary:hover::after { opacity: 1; }
.btn-primary.full-width { width: 100%; justify-content: center; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-condensed);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.2);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  transition: border-color var(--trans-fast), color var(--trans-fast), box-shadow var(--trans-fast), transform var(--trans-fast);
}
.btn-ghost:hover {
  border-color: var(--purple);
  color: var(--purple);
  box-shadow: 0 0 20px var(--purple-glow);
  transform: translateY(-2px);
}

/* ── 9. PROCESS SECTION ────────────────────────────────────── */
#sec-proceso { background: var(--bg-deep); }
#sec-proceso .section-inner {
  padding: var(--section-pad);
  max-width: 1320px;
  margin: 0 auto;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  gap: 2px;
  position: relative;
  margin-bottom: 56px;
}
.process-timeline::before {
  content: '';
  position: absolute;
  top: 48px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  opacity: 0.3;
  z-index: 0;
  display: none; /* shown on wide screens via media query */
}

.process-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: relative;
  transition: transform var(--trans-mid), box-shadow var(--trans-mid), border-color var(--trans-mid);
  animation: fade-in-up 0.5s ease both;
}
.process-step:hover {
  transform: translateY(-6px);
  border-color: var(--cyan-dim);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 30px var(--cyan-glow);
}
.process-step-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--border-subtle);
  line-height: 1;
  margin-bottom: 16px;
  transition: -webkit-text-stroke var(--trans-mid), color var(--trans-mid);
}
.process-step:hover .process-step-number {
  -webkit-text-stroke: 1.5px var(--cyan);
  text-shadow: 0 0 20px var(--cyan-glow);
}
.process-step-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}
.process-step-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
  margin-bottom: 10px;
}
.process-step-desc {
  font-size: 0.9rem;
  color: var(--gray-mid);
  line-height: 1.65;
}
.process-step-badge {
  position: absolute;
  top: 20px; right: 20px;
  font-family: var(--font-condensed);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 12px;
}

.process-note {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: rgba(0,229,255,0.05);
  border: 1px solid rgba(0,229,255,0.15);
  border-radius: var(--radius-md);
  padding: 24px 28px;
}
.note-icon { font-size: 1.5rem; flex-shrink: 0; line-height: 1; }
.process-note p { color: var(--gray-light); font-size: 0.95rem; line-height: 1.6; }
.process-note strong { color: var(--cyan); }

/* ── 10. PORTFOLIO SECTION ─────────────────────────────────── */
#sec-portafolio { background: var(--bg-mid); }
#sec-portafolio .section-inner {
  padding: var(--section-pad);
  max-width: 1320px;
  margin: 0 auto;
}

/* Filter buttons */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 48px;
}
.filter-btn {
  font-family: var(--font-condensed);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-mid);
  border: 1.5px solid var(--gray-dark);
  background: transparent;
  padding: 8px 20px;
  border-radius: 24px;
  transition: var(--trans-fast);
}
.filter-btn:hover      { color: var(--white); border-color: var(--gray-mid); }
.filter-btn.active     { color: var(--bg-deep); background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 16px var(--cyan-glow); }

/* Portfolio grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: clamp(16px, 2.5vw, 28px);
}

.portfolio-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: transform var(--trans-mid), box-shadow var(--trans-mid), border-color var(--trans-mid);
  animation: fade-in-up 0.4s ease both;
}
.portfolio-card:hover {
  transform: translateY(-8px) scale(1.01);
}

/* The neon visual placeholder (replaces image) */
.card-visual {
  width: 100%;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.card-visual-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}
.card-neon-label {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.5vw, 2.2rem);
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.15;
  display: block;
}
.card-neon-sub {
  display: block;
  font-family: var(--font-condensed);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-top: 6px;
}

/* Color themes per card — set via inline style on .portfolio-card */
.card-visual-bg {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  transition: opacity var(--trans-mid);
}
.portfolio-card:hover .card-visual-bg { opacity: 0.22; }

/* ── Portfolio — imagen real desde Google Drive ── */
.card-img-wrap {
  width: 100%;
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
}
.card-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1), filter 0.4s ease;
  filter: brightness(0.92) saturate(1.05);
}
.portfolio-card:hover .card-img-wrap img {
  transform: scale(1.07);
  filter: brightness(0.7) saturate(1.1);
}
/* Overlay de color neon sobre la imagen al hover */
.card-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--img-glow, rgba(0,229,255,0.18));
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.portfolio-card:hover .card-img-wrap::after { opacity: 1; }

/* Borde neon inferior de la imagen */
.card-img-wrap::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--img-border, var(--cyan));
  box-shadow: 0 0 12px var(--img-border, var(--cyan));
  z-index: 2;
  transform: scaleX(0);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: left;
}
.portfolio-card:hover .card-img-wrap::before { transform: scaleX(1); }

/* Estado de carga de imagen */
.card-img-skeleton {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    var(--bg-card) 0%, rgba(255,255,255,0.04) 40%, var(--bg-card) 60%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.6s infinite;
}
@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Lightbox — imagen real */
.lb-visual-img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--border-subtle);
}

.card-info {
  padding: 20px 22px;
  border-top: 1px solid var(--border-subtle);
}
.card-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.card-desc {
  font-size: 0.82rem;
  color: var(--gray-mid);
  line-height: 1.5;
  margin-bottom: 12px;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.card-tag {
  font-family: var(--font-condensed);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 12px;
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--trans-mid);
  z-index: 10;
}
.portfolio-card:hover .card-overlay { opacity: 1; }
.overlay-btn {
  font-family: var(--font-condensed);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--cyan);
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  transform: translateY(10px);
  transition: transform var(--trans-mid), box-shadow var(--trans-fast);
}
.portfolio-card:hover .overlay-btn { transform: translateY(0); }
.overlay-btn:hover { box-shadow: 0 0 24px var(--cyan); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fade-in 0.25s ease;
  backdrop-filter: blur(8px);
}
.lightbox[hidden] { display: none; }
.lightbox-close {
  position: absolute;
  top: 24px; right: 24px;
  font-size: 1.5rem;
  color: var(--gray-light);
  background: rgba(255,255,255,0.08);
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--trans-fast);
}
.lightbox-close:hover { background: rgba(255,255,255,0.15); color: var(--white); transform: rotate(90deg); }
.lightbox-content {
  max-width: 700px;
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}
.lb-visual { aspect-ratio: 16/9; width: 100%; display: flex; align-items: center; justify-content: center; }
.lb-body { padding: 28px 32px; }
.lb-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 900; color: var(--white); margin-bottom: 10px; }
.lb-desc  { color: var(--gray-mid); line-height: 1.65; font-size: 0.92rem; margin-bottom: 16px; }
.lb-tags  { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── 11. FAQ SECTION ───────────────────────────────────────── */
#sec-faq { background: var(--bg-deep); }
#sec-faq .section-inner {
  padding: var(--section-pad);
  max-width: 1320px;
  margin: 0 auto;
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.faq-accordion { display: flex; flex-direction: column; gap: 4px; }

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
}
.faq-item:hover { border-color: rgba(0,229,255,0.2); }
.faq-item.open  { border-color: rgba(0,229,255,0.35); box-shadow: 0 0 20px rgba(0,229,255,0.06); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  text-align: left;
  color: var(--gray-light);
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.4;
  transition: color var(--trans-fast);
}
.faq-item.open .faq-question { color: var(--cyan); }
.faq-question:hover { color: var(--white); }
.faq-arrow {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--gray-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--gray-mid);
  transition: transform var(--trans-mid), border-color var(--trans-fast), color var(--trans-fast);
}
.faq-item.open .faq-arrow { transform: rotate(180deg); border-color: var(--cyan); color: var(--cyan); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer-inner {
  padding: 0 24px 22px;
  color: var(--gray-mid);
  font-size: 0.92rem;
  line-height: 1.7;
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}
.faq-answer-inner strong { color: var(--white); }
.faq-answer-inner a { color: var(--cyan); text-decoration: underline; }

/* FAQ sidebar */
.faq-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: calc(var(--nav-h) + 24px); }
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.highlight-card { border-color: rgba(189,0,255,0.25); background: rgba(189,0,255,0.04); }
.sidebar-icon { font-size: 1.8rem; }
.sidebar-card h3 { font-family: var(--font-display); font-size: 0.88rem; font-weight: 700; color: var(--white); }
.sidebar-card p  { font-size: 0.85rem; color: var(--gray-mid); line-height: 1.6; }
.btn-whatsapp-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-condensed);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--whatsapp);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  margin-top: 4px;
  transition: box-shadow var(--trans-fast), transform var(--trans-fast);
}
.btn-whatsapp-inline:hover { box-shadow: 0 0 20px rgba(37,211,102,0.4); transform: translateY(-1px); }

/* ── 12. CONTACT SECTION ───────────────────────────────────── */
#sec-contacto { background: var(--bg-mid); }
#sec-contacto .section-inner {
  padding: var(--section-pad);
  max-width: 1320px;
  margin: 0 auto;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 56px;
  align-items: start;
}

/* Form */
.contact-form-wrap { position: relative; }
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-family: var(--font-condensed);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-mid);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-card);
  border: 1.5px solid var(--gray-dark);
  border-radius: var(--radius-sm);
  color: var(--white);
  padding: 12px 16px;
  font-size: 0.92rem;
  transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
  outline: none;
  -webkit-appearance: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--gray-dark); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.12);
}
.form-group input.error,
.form-group textarea.error { border-color: var(--red-neon); }
.field-error {
  font-size: 0.75rem;
  color: var(--red-neon);
  min-height: 16px;
}

.form-note {
  font-size: 0.78rem;
  color: var(--gray-dark);
  text-align: center;
  margin-top: 4px;
}

.btn-icon { transition: transform var(--trans-fast); }
.btn-primary:hover .btn-icon { transform: translateX(4px); }

/* Form success */
.form-success {
  text-align: center;
  padding: 60px 40px;
  background: var(--bg-card);
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.form-success[hidden] { display: none; }
.success-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(0,229,255,0.12);
  border: 2px solid var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--cyan);
}
.form-success h3 { font-family: var(--font-display); color: var(--white); font-size: 1.1rem; }
.form-success p  { color: var(--gray-mid); font-size: 0.9rem; max-width: 360px; }

/* Contact info */
.contact-info { position: sticky; top: calc(var(--nav-h) + 24px); }
.contact-info-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gray-mid);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.info-cards { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
}
.info-card:hover { border-color: var(--cyan-dim); box-shadow: 0 0 20px var(--cyan-glow); }
.info-card a { color: var(--cyan); }
.info-card a:hover { text-decoration: underline; }
.info-icon { font-size: 1.3rem; flex-shrink: 0; line-height: 1; margin-top: 2px; }
.info-label {
  font-family: var(--font-condensed);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-dark);
  margin-bottom: 3px;
}
.info-value { font-size: 0.9rem; color: var(--gray-light); line-height: 1.5; }

/* Map placeholder */
.contact-map-placeholder {
  background: var(--bg-card);
  border: 1px solid rgba(189,0,255,0.2);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.map-pin { font-size: 2.4rem; animation: float-up-down 3s ease-in-out infinite; }
.contact-map-placeholder p { font-size: 0.88rem; color: var(--gray-mid); line-height: 1.5; }
.map-link {
  font-family: var(--font-condensed);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple);
  transition: color var(--trans-fast);
}
.map-link:hover { color: var(--white); }

/* ── 13. FOOTER ────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-subtle);
  padding: 48px clamp(20px, 6vw, 80px) 32px;
}
.footer-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 40px 60px;
  align-items: center;
}
.footer-brand .logo-main  { font-family: var(--font-display); font-weight: 900; color: var(--white); font-size: 1rem; }
.footer-brand .logo-accent { font-family: var(--font-display); font-weight: 900; color: var(--cyan); }
.footer-brand p { font-size: 0.82rem; color: var(--gray-dark); margin-top: 8px; max-width: 280px; }
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-nav a {
  font-family: var(--font-condensed);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-dark);
  cursor: pointer;
  transition: color var(--trans-fast);
}
.footer-nav a:hover { color: var(--cyan); }
.footer-legal { text-align: right; }
.footer-legal p { font-size: 0.75rem; color: var(--gray-dark); line-height: 1.6; }

/* ── 14. WHATSAPP FAB ──────────────────────────────────────── */
.whatsapp-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--whatsapp);
  color: var(--white);
  border-radius: 50px;
  padding: 14px 20px 14px 16px;
  box-shadow: 0 4px 20px rgba(37,211,102,0.35);
  transition: transform var(--trans-fast), box-shadow var(--trans-fast), padding var(--trans-mid);
  overflow: hidden;
}
.whatsapp-fab svg { width: 26px; height: 26px; flex-shrink: 0; }
.fab-label {
  font-family: var(--font-condensed);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.fab-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50px;
  border: 2px solid var(--whatsapp);
  animation: pulse-ring 2s ease-out infinite;
}
.whatsapp-fab:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 8px 30px rgba(37,211,102,0.5);
}

/* ══════════════════════════════════════════════════════════════
   15. RESPONSIVE — Mobile-first optimized
   Breakpoints: 1100 → 900 → 768 → 600 → 480 → 390 → 320
══════════════════════════════════════════════════════════════ */

/* ── 1100px: Tablets / small laptops ── */
@media (max-width: 1100px) {
  .faq-layout     { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info   { position: static; }
  .faq-sidebar    { position: static; display: grid; grid-template-columns: 1fr 1fr; }
  .footer-inner   { grid-template-columns: 1fr 1fr; }
  .footer-legal   { text-align: left; grid-column: 1 / -1; }
}

/* ── 900px: Large phones / small tablets ── */
@media (max-width: 900px) {
  #sec-inicio {
    grid-template-columns: 1fr;
    text-align: center;
    padding-bottom: 80px;
  }
  .hero-content   { grid-column: 1; order: 2; }
  .hero-visual    { grid-column: 1; order: 1; margin-bottom: 16px; }
  .hero-cta-group { justify-content: center; }
  .hero-stats     { justify-content: center; }
  .hero-sub       { margin-left: auto; margin-right: auto; }
  .process-timeline::before { display: none; }
}

/* ── 768px: Mobile — hamburger menu ── */
@media (max-width: 768px) {
  :root {
    --nav-h: 60px;
    --section-pad: clamp(56px, 9vw, 80px) clamp(16px, 5vw, 40px);
  }

  /* Navigation */
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(11,15,25,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 20px 28px;
    gap: 2px;
    transform: translateY(-110%);
    transition: transform var(--trans-mid);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 999;
    /* Safe area for notched phones */
    padding-bottom: max(28px, env(safe-area-inset-bottom, 28px));
  }
  .nav-links.open { transform: translateY(0); }
  /* Bigger tap targets on mobile */
  .nav-link {
    padding: 14px 16px;
    font-size: 1rem;
    min-height: 48px;
    display: flex;
    align-items: center;
  }
  .nav-cta {
    margin-top: 10px;
    text-align: center;
    padding: 16px;
    width: 100%;
    min-height: 52px;
    font-size: 0.95rem;
  }

  /* Form */
  .form-row       { grid-template-columns: 1fr; }
  .faq-sidebar    { grid-template-columns: 1fr; }
  .footer-inner   { grid-template-columns: 1fr; text-align: center; }
  .footer-legal   { text-align: center; }
  .footer-nav     { align-items: center; }
  .footer-brand p { max-width: 100%; }

  /* Portfolio */
  .portfolio-grid { grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); }

  /* Process steps: comfortable on tablet */
  .process-step { padding: 28px 22px; }

  /* Bigger filter buttons (touch friendly) */
  .filter-btn { padding: 10px 18px; min-height: 44px; }

  /* FAQ: bigger tap targets */
  .faq-question { padding: 20px 20px; min-height: 56px; }

  /* Section header spacing */
  .section-header { margin-bottom: clamp(32px, 6vw, 56px); }

  /* Hero stats: tighter */
  .hero-stats { gap: 16px; }
  .stat-divider { height: 32px; }
}

/* ── 600px: Typical phones ── */
@media (max-width: 600px) {
  /* Hero */
  #sec-inicio {
    padding-top: calc(var(--nav-h) + 20px);
    padding-bottom: 60px;
    min-height: auto;
    gap: clamp(20px, 5vw, 40px);
  }
  .hero-eyebrow { font-size: 0.72rem; letter-spacing: 0.14em; }
  .hero-sub     { font-size: 0.95rem; max-width: 100%; }

  /* Stats: wrap nicely */
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    width: 100%;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
  }
  .stat-item { align-items: center; text-align: center; }
  .stat-divider { height: 48px; margin: auto; }

  /* Logo sign: compact on phones */
  .cn-logo-sign { margin-bottom: 8px; }
  .cn-text-main { font-size: clamp(1.3rem, 7.5vw, 2rem); }
  .cn-text-script { font-size: clamp(1rem, 6vw, 1.6rem); }

  /* Brand tags: smaller */
  .brand-tag { font-size: 0.72rem; padding: 4px 10px; }

  /* Portfolio: 1 column */
  .portfolio-grid { grid-template-columns: 1fr; }

  /* Process */
  .process-step { padding: 24px 18px; }
  .process-note { flex-direction: column; gap: 12px; padding: 20px; }

  /* Lightbox body */
  .lb-body { padding: 20px; }
  .lb-title { font-size: 1rem; }

  /* Scroll cue: hide to save space on small screens */
  .scroll-cue { display: none; }

  /* FAQ answer: increase max-height for small screens where text wraps more */
  .faq-item.open .faq-answer { max-height: 600px; }

  /* Contact form inputs: bigger tap area */
  .form-group input,
  .form-group select,
  .form-group textarea {
    padding: 14px 16px;
    font-size: 1rem; /* prevent iOS zoom on focus */
    min-height: 48px;
  }
  .form-group textarea { min-height: auto; }

  /* Form button full width */
  .btn-primary.full-w,
  button[type="submit"] { min-height: 52px; }

  /* Footer: compact */
  .footer-inner { gap: 28px; }
  .site-footer  { padding: 36px clamp(16px, 5vw, 40px) 24px; }
}

/* ── 480px: Small phones ── */
@media (max-width: 480px) {
  /* Hero buttons: stacked */
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; min-height: 52px; }

  /* WhatsApp FAB: icon only */
  .fab-label { display: none; }
  .whatsapp-fab {
    padding: 15px;
    border-radius: 50%;
    bottom: max(20px, env(safe-area-inset-bottom, 20px));
    right: 20px;
  }

  /* Lightbox: full screen on small phones */
  .lightbox { padding: 0; align-items: flex-end; }
  .lightbox-content {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .lightbox-close { top: 12px; right: 12px; }
  .lb-visual-img { max-height: 260px; }
  .lb-body { padding: 20px 18px 32px; }

  /* Section inner: tighter padding */
  .section-inner { padding: clamp(40px, 8vw, 64px) clamp(14px, 5vw, 28px); }

  /* Section title: smaller */
  .section-title { font-size: clamp(1.5rem, 6vw, 2rem); }

  /* Hero title: tighten */
  .hero-title { font-size: clamp(1.8rem, 8vw, 2.8rem); }

  /* Process step number */
  .process-step-number { font-size: 2.8rem; }

  /* Sidebar cards: full padding */
  .sidebar-card { padding: 22px 18px; }

  /* Contact map card */
  .map-card { padding: 22px 18px; }

  /* Info card */
  .info-card { padding: 16px; gap: 12px; }
}

/* ── 390px: iPhone-sized screens ── */
@media (max-width: 390px) {
  :root { --nav-h: 56px; }

  /* Logo: reduce letter spacing so it doesn't wrap */
  .logo { font-size: 0.8rem; letter-spacing: 0.03em; }

  /* Hero title */
  .hero-title { font-size: clamp(1.65rem, 9vw, 2.2rem); gap: 2px; }
  .hero-eyebrow { display: none; } /* remove decorative line on very small screens */

  /* Stats: go back to row layout but smaller */
  .hero-stats {
    grid-template-columns: 1fr auto 1fr;
    max-width: 280px;
  }
  .stat-number { font-size: clamp(1.5rem, 6vw, 1.9rem); }
  .stat-label  { font-size: 0.68rem; }

  /* CN logo sign: proportional shrink */
  .cn-logo-sign { width: 86vw; height: 49vw; }
  .cn-text-main  { font-size: 6.8vw; }
  .cn-text-script { font-size: 5.5vw; }
  .cn-text-script { padding-right: 5%; }

  /* Process step: trim padding */
  .process-step { padding: 20px 16px; }

  /* Filter buttons: wrap nicely */
  .portfolio-filters { gap: 8px; }
  .filter-btn { padding: 9px 14px; font-size: 0.78rem; }

  /* FAQ: smaller padding */
  .faq-question { padding: 18px 16px; font-size: 0.9rem; }
  .faq-answer-inner { padding: 0 16px 18px; padding-top: 16px; }

  /* Nav links: remove gap */
  .nav-links { padding: 16px 16px 24px; gap: 0; }

  /* Footer: very compact */
  .footer-inner  { gap: 20px; }
}

/* ── 320px: Very small screens (Galaxy A series, older iPhones) ── */
@media (max-width: 320px) {
  :root { --nav-h: 52px; }

  .logo-bracket { display: none; } /* save horizontal space in logo */
  .logo { font-size: 0.78rem; }

  .hero-title { font-size: clamp(1.5rem, 10vw, 1.9rem); }
  .hero-sub   { font-size: 0.88rem; }

  /* Stats: single column */
  .hero-stats {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    max-width: 100%;
  }
  .stat-divider { width: 40px; height: 1px; }

  /* CN sign: nearly full width */
  .cn-logo-sign { width: 92vw; height: 52vw; }
  .cn-text-main  { font-size: 7.5vw; }
  .cn-text-script { font-size: 6vw; margin-top: -4px; }

  /* Buttons: comfortable */
  .btn-primary, .btn-ghost { padding: 14px 20px; font-size: 0.85rem; }

  /* Process step number: smaller */
  .process-step-number { font-size: 2.2rem; }

  /* Section title */
  .section-title { font-size: clamp(1.35rem, 8vw, 1.7rem); }
  .section-desc  { font-size: 0.9rem; }

  /* FAQ */
  .faq-answer-inner { font-size: 0.88rem; }
}

/* ── Safe area insets for notched/Dynamic Island phones ── */
@supports (padding: max(0px)) {
  .site-header {
    padding-top: env(safe-area-inset-top, 0px);
    height: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  }
  .nav-links {
    top: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  }
  .whatsapp-fab {
    bottom: max(20px, env(safe-area-inset-bottom, 20px));
    right: max(20px, env(safe-area-inset-right, 20px));
  }
}

/* ── Reduce motion for accessibility ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ── 16. SELECT OPTION FIX (dark browsers) ─────────────────── */
option { background: var(--bg-card); color: var(--white); }

/* ── 17. FOCUS VISIBLE ACCESSIBILITY ───────────────────────── */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}