/* ═══════════════════════════════════════
   LIYA ASSOCIATES — STYLESHEET
   Theme: Refined Corporate Elegance
   ═══════════════════════════════════════ */

/* ── TOKENS ─────────────────────────── */
:root {
  --navy:      #0a1628;
  --navy-mid:  #132240;
  --blue:      #1a4fa0;
  --blue-lt:   #2563eb;
  --accent:    #c8a96e;
  --accent-lt: #e2c896;
  --bg:        #f8f8f6;
  --bg-2:      #ffffff;
  --bg-card:   #ffffff;
  --border:    #e8e8e4;
  --text:      #1a1a1a;
  --text-2:    #4a4a4a;
  --text-3:    #888;
  --shadow:    0 4px 24px rgba(10,22,40,.08);
  --shadow-lg: 0 12px 48px rgba(10,22,40,.14);
  --radius:    12px;
  --radius-lg: 20px;
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
  --bg:       #0d1117;
  --bg-2:     #161b24;
  --bg-card:  #1c2333;
  --border:   #2a3448;
  --text:     #e8ecf0;
  --text-2:   #a8b4c4;
  --text-3:   #607080;
  --shadow:   0 4px 24px rgba(0,0,0,.3);
  --shadow-lg:0 12px 48px rgba(0,0,0,.4);
}

/* ── RESET ───────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }
em { font-style: normal; color: var(--blue-lt); }
[data-theme="dark"] em { color: var(--accent-lt); }

/* ── UTIL ────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 96px 0; }
.section-tag {
  display: inline-block;
  font-size: .75rem; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue-lt);
  background: rgba(37,99,235,.09);
  padding: 5px 14px; border-radius: 99px;
  margin-bottom: 16px;
}
[data-theme="dark"] .section-tag { background: rgba(200,169,110,.12); color: var(--accent-lt); }
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 16px;
}
[data-theme="dark"] .section-title { color: var(--text); }
.section-sub { color: var(--text-2); font-size: 1.05rem; max-width: 480px; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .section-sub { margin: 0 auto; }

/* ── BUTTONS ─────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 8px;
  font-size: .95rem; font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 4px 16px rgba(10,22,40,.2);
}
.btn-primary:hover {
  background: var(--blue-lt);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,99,235,.3);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: #fff;
  transform: translateY(-2px);
}
[data-theme="dark"] .btn-outline { color: var(--text); border-color: var(--border); }
[data-theme="dark"] .btn-outline:hover { background: var(--bg-card); }
.btn-full { width: 100%; justify-content: center; }

/* ── NAV ─────────────────────────────── */
.nav-wrap {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(248,248,246,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
[data-theme="dark"] .nav-wrap { background: rgba(13,17,23,.92); }
.nav-wrap.scrolled { border-color: var(--border); box-shadow: var(--shadow); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
}
.logo-icon { font-size: 1.5rem; }
.logo-text em { color: var(--blue-lt); font-style: italic; }
[data-theme="dark"] .logo-text em { color: var(--accent); }
.nav-links {
  display: flex; gap: 8px; align-items: center;
}
.nav-links a {
  padding: 8px 14px; border-radius: 6px;
  font-size: .9rem; font-weight: 500; color: var(--text-2);
  transition: all var(--transition);
}
.nav-links a:hover { color: var(--text); background: var(--border); }
.nav-cta {
  background: var(--navy) !important;
  color: #fff !important;
  border-radius: 8px !important;
}
.nav-cta:hover { background: var(--blue-lt) !important; }
.nav-actions { display: flex; gap: 8px; align-items: center; }
.theme-toggle {
  width: 40px; height: 40px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--text-2);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: all var(--transition);
}
.theme-toggle:hover { color: var(--text); border-color: var(--text-3); }
[data-theme="light"] .moon { display: none; }
[data-theme="dark"] .sun { display: none; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 40px; height: 40px; padding: 10px;
  border-radius: 8px; background: var(--bg-card); border: 1px solid var(--border);
}
.hamburger span {
  display: block; height: 2px; background: var(--text);
  border-radius: 2px; transition: all var(--transition);
}

/* ── HERO ────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: 68px;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,.08) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero::before {
  content: '';
  position: absolute; top: -40%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute; bottom: -30%; left: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(200,169,110,.1) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 1;
  padding-top: 80px; padding-bottom: 80px;
  max-width: 760px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent);
  background: rgba(200,169,110,.12);
  border: 1px solid rgba(200,169,110,.25);
  padding: 6px 16px; border-radius: 99px;
  margin-bottom: 28px;
  animation: fadeUp .6s ease both;
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700; line-height: 1.1;
  color: #ffffff; margin-bottom: 24px;
  animation: fadeUp .7s .1s ease both;
}
.accent-text { color: var(--accent); }
.hero-subtitle {
  font-size: 1.1rem; color: rgba(255,255,255,.7);
  max-width: 540px; margin-bottom: 36px;
  animation: fadeUp .7s .2s ease both;
}
.hero-actions {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 56px;
  animation: fadeUp .7s .3s ease both;
}
.hero-actions .btn-primary { background: var(--accent); color: var(--navy); }
.hero-actions .btn-primary:hover { background: var(--accent-lt); }
.hero-actions .btn-outline { border-color: rgba(255,255,255,.3); color: #fff; }
.hero-actions .btn-outline:hover { background: rgba(255,255,255,.1); }
.hero-stats {
  display: flex; align-items: center; gap: 32px; flex-wrap: wrap;
  animation: fadeUp .7s .4s ease both;
}
.stat { display: flex; flex-direction: column; }
.stat strong { font-size: 1.8rem; font-weight: 700; color: #fff; }
.stat span { font-size: .8rem; color: rgba(255,255,255,.5); letter-spacing: .05em; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,.15); }
.hero-scroll-hint {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,.4); font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase;
  animation: fadeIn 1s 1s ease both;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent);
  animation: scrollPulse 2s 1.5s ease-in-out infinite;
}

/* ── ABOUT ───────────────────────────── */
.about { background: var(--bg-2); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 80px; align-items: center;
}
.about-visual { position: relative; height: 360px; }
.about-card-stack { position: relative; height: 100%; }
.about-card {
  position: absolute;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px 24px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow);
  font-weight: 600; font-size: .9rem;
}
.ac-icon { font-size: 1.4rem; }
.ac-1 { top: 10px; left: 0; right: 60px; }
.ac-2 { top: 110px; left: 30px; right: 20px; }
.ac-3 { top: 210px; left: 10px; right: 50px; }
.about-badge {
  position: absolute; bottom: 20px; right: 0;
  background: var(--navy); color: #fff;
  font-size: .75rem; font-weight: 600; padding: 8px 16px;
  border-radius: 8px;
}
[data-theme="dark"] .about-badge { background: var(--accent); color: var(--navy); }
.about-content .section-title { margin-bottom: 20px; }
.about-content p { color: var(--text-2); margin-bottom: 16px; }
.about-highlights { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.ah-item { display: flex; align-items: center; gap: 12px; font-size: .95rem; }
.ah-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--blue-lt); flex-shrink: 0;
}
[data-theme="dark"] .ah-dot { background: var(--accent); }

/* ── SERVICES ────────────────────────── */
.services { background: var(--bg); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-lt), var(--accent));
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-lt); }
.service-card:hover::before { transform: scaleX(1); }
.service-card--wide { grid-column: span 3; }
.service-card--wide ul {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px 24px;
}
.sc-icon-wrap { margin-bottom: 16px; }
.sc-icon { font-size: 1.8rem; }
.service-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.05rem; font-weight: 600;
  margin-bottom: 16px; color: var(--navy);
}
[data-theme="dark"] .service-card h3 { color: var(--text); }
.service-card ul { display: flex; flex-direction: column; gap: 6px; }
.service-card li {
  font-size: .875rem; color: var(--text-2);
  padding-left: 14px; position: relative;
}
.service-card li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--blue-lt); font-size: .7rem;
}
[data-theme="dark"] .service-card li::before { color: var(--accent); }

/* ── WHY US ──────────────────────────── */
.why-us { background: var(--navy); }
.why-us .section-tag { background: rgba(200,169,110,.12); color: var(--accent); }
.why-us .section-title { color: #fff; }
.why-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.why-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}
.why-card:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(200,169,110,.3);
  transform: translateY(-3px);
}
.why-num {
  font-size: 2.4rem; font-weight: 700;
  color: rgba(200,169,110,.25);
  font-family: 'Playfair Display', serif;
  margin-bottom: 12px; line-height: 1;
}
.why-card h4 {
  font-size: 1rem; font-weight: 600;
  color: #fff; margin-bottom: 10px;
}
.why-card p { font-size: .88rem; color: rgba(255,255,255,.55); }

/* ── FAQ ─────────────────────────────── */
.faq { background: var(--bg-2); }
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 4px; margin-top: 48px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:has(.faq-q[aria-expanded="true"]) { border-color: var(--blue-lt); }
[data-theme="dark"] .faq-item:has(.faq-q[aria-expanded="true"]) { border-color: var(--accent); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; font-size: .95rem; font-weight: 600;
  color: var(--text); text-align: left; gap: 16px;
  background: var(--bg-card);
  transition: all var(--transition);
}
.faq-q:hover { background: var(--bg); }
.faq-chevron {
  font-size: 1.1rem; flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-3);
}
.faq-q[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .35s cubic-bezier(.4,0,.2,1);
  background: var(--bg-card);
}
.faq-a p { padding: 0 24px 20px; color: var(--text-2); font-size: .9rem; }

/* ── CONTACT ─────────────────────────── */
.contact { background: var(--bg); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 80px; align-items: start;
}
.contact-info .section-title { margin-bottom: 16px; }
.contact-info > p { color: var(--text-2); margin-bottom: 32px; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.cd-item { display: flex; align-items: flex-start; gap: 16px; }
.cd-icon { font-size: 1.3rem; padding-top: 2px; flex-shrink: 0; }
.cd-item strong { display: block; margin-bottom: 2px; }
.cd-item div { color: var(--text-2); font-size: .9rem; }

/* FORM */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--text); }
.req { color: #e53e3e; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-lt);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group select:focus,
[data-theme="dark"] .form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,169,110,.12);
}
.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: #e53e3e;
  box-shadow: 0 0 0 3px rgba(229,62,62,.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group select { appearance: none; cursor: pointer; }
.field-error { font-size: .78rem; color: #e53e3e; min-height: 16px; }
#submitBtn { position: relative; overflow: hidden; margin-top: 4px; }
.btn-loader {
  display: none; width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  position: absolute; right: 20px;
}
#submitBtn.loading .btn-text { opacity: .6; }
#submitBtn.loading .btn-loader { display: inline-block; }
#submitBtn:disabled { opacity: .7; cursor: not-allowed; pointer-events: none; }
.form-feedback {
  margin-top: 16px; padding: 14px 18px;
  border-radius: 8px; font-size: .9rem; font-weight: 500;
  display: none;
}
.form-feedback.success {
  display: block;
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.3);
  color: #15803d;
}
.form-feedback.error {
  display: block;
  background: rgba(229,62,62,.1);
  border: 1px solid rgba(229,62,62,.3);
  color: #b91c1c;
}
[data-theme="dark"] .form-feedback.success { color: #4ade80; }
[data-theme="dark"] .form-feedback.error { color: #f87171; }

/* ── FOOTER ──────────────────────────── */
.footer { background: var(--navy); color: rgba(255,255,255,.8); }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding: 64px 0 48px;
}
.footer-brand .logo { margin-bottom: 16px; color: #fff; }
.footer-brand p { font-size: .875rem; color: rgba(255,255,255,.45); max-width: 260px; }
.footer-col h5 {
  font-size: .8rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col li, .footer-col a { font-size: .875rem; color: rgba(255,255,255,.5); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  text-align: center;
  font-size: .8rem; color: rgba(255,255,255,.3);
}

/* ── FAB (FLOATING BUTTONS) ──────────── */
.fab {
  position: fixed; bottom: 28px;
  width: 54px; height: 54px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,.25);
  transition: all var(--transition); z-index: 900;
}
.fab svg { width: 24px; height: 24px; }
.fab:hover { transform: scale(1.1) translateY(-2px); }
.fab-whatsapp { left: 24px; background: #25d366; color: #fff; }
.fab-whatsapp:hover { background: #1da851; box-shadow: 0 6px 24px rgba(37,211,102,.4); }
.fab-call { right: 24px; background: var(--navy); color: #fff; }
.fab-call:hover { background: var(--blue-lt); box-shadow: 0 6px 24px rgba(37,99,235,.4); }

/* ── SCROLL-TO-TOP ───────────────────── */
.scroll-top {
  position: fixed; bottom: 96px; right: 24px;
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-2); font-size: .7rem;
  box-shadow: var(--shadow);
  opacity: 0; pointer-events: none;
  transition: all var(--transition); z-index: 900;
}
.scroll-top.visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ── ANIMATIONS ──────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes scrollPulse {
  0%, 100% { opacity: .4; transform: scaleY(1); }
  50% { opacity: .9; transform: scaleY(1.15); }
}

/* Scroll-reveal */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── MOBILE ──────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card--wide { grid-column: span 2; }
  .service-card--wide ul { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section-pad { padding: 64px 0; }
  .nav-links { display: none; flex-direction: column; gap: 4px; }
  .nav-links.open {
    display: flex; position: fixed; top: 68px; left: 0; right: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--border);
    padding: 16px; z-index: 999;
  }
  .nav-links a { padding: 12px 16px; border-radius: 8px; }
  .hamburger { display: flex; }
  .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
  .hero-inner { padding-top: 48px; }
  .hero-stats { gap: 20px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-visual { height: 240px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card--wide { grid-column: span 1; }
  .service-card--wide ul { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-form-wrap { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 32px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.4rem; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}