/* ============================================================
   AVRILAR, INC. — Professional Corporate Website
   Design System & Master Stylesheet
   ============================================================ */

/* --- CSS Custom Properties --------------------------------- */
:root {
  --color-deep: #080f1a;
  --color-navy: #0d1b2e;
  --color-navy-light: #132842;
  --color-slate: #1e3148;
  --color-accent: #c48b3c;
  --color-accent-light: #d9a855;
  --color-accent-pale: #f5ecd7;
  --color-warm-white: #faf9f6;
  --color-cream: #f3f1eb;
  --color-white: #ffffff;
  --color-text: #1a1c20;
  --color-text-soft: #4a4d55;
  --color-text-muted: #787b83;
  --color-border: #e2dfd8;
  --color-border-light: #edeae4;
  --color-success: #3b7f5c;
  --color-error: #b8453a;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 3px rgba(8, 15, 26, 0.06);
  --shadow-md: 0 4px 16px rgba(8, 15, 26, 0.08);
  --shadow-lg: 0 12px 40px rgba(8, 15, 26, 0.10);
  --shadow-xl: 0 20px 60px rgba(8, 15, 26, 0.14);

  --transition-fast: 160ms ease;
  --transition-base: 280ms ease;
  --transition-slow: 420ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-warm-white);
  line-height: 1.64;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* --- Typography -------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--color-deep);
}

h1 { font-size: clamp(2.6rem, 5.5vw, 4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p { margin-bottom: 1rem; color: var(--color-text-soft); }
p:last-child { margin-bottom: 0; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

/* --- Layout Utilities -------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow { max-width: 820px; }

.section {
  padding: 6rem 0;
}

.section-dark {
  background: var(--color-navy);
  color: var(--color-white);
}

.section-dark h2, .section-dark h3, .section-dark h4 {
  color: var(--color-white);
}

.section-dark p {
  color: rgba(255,255,255,0.72);
}

.section-cream {
  background: var(--color-cream);
}

/* --- Grid -------------------------------------------------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 2rem; }
}

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  letter-spacing: -0.01em;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.35);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.65);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border);
}

.btn-outline-dark:hover {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

/* --- Navigation -------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition-base);
}

.nav.scrolled {
  background: rgba(8, 15, 26, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.6rem 0;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-white);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-links a {
  color: rgba(255,255,255,0.78);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-white);
}

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

.nav-links .btn {
  padding: 0.55rem 1.2rem;
  font-size: 0.85rem;
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-base);
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-deep);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    gap: 1.6rem;
    transition: right var(--transition-base);
    box-shadow: var(--shadow-xl);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-mobile-toggle {
    display: flex;
    z-index: 1001;
  }

  .nav-mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* --- Hero -------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-deep);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.18;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(196,139,60,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(196,139,60,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(255,255,255,0.03) 0%, transparent 70%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: 1.4rem;
  line-height: 1.1;
}

.hero-content h1 span {
  color: var(--color-accent-light);
}

.hero-content p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.62);
  max-width: 560px;
  margin-bottom: 2.2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  margin-top: 0.3rem;
  letter-spacing: 0.02em;
}

@media (max-width: 700px) {
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .hero-stat-value { font-size: 1.6rem; }
}

/* --- Section Headers --------------------------------------- */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 540px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* --- Cards ------------------------------------------------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-accent-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.3rem;
  font-size: 1.4rem;
}

.card h3 {
  margin-bottom: 0.6rem;
}

.card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* --- Feature Block ----------------------------------------- */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-visual {
  background: var(--color-cream);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.feature-visual-inner {
  width: 70%;
  height: 60%;
  background: var(--color-navy);
  border-radius: var(--radius-md);
  position: relative;
}

.feature-visual-accent {
  position: absolute;
  width: 50%;
  height: 50%;
  background: var(--color-accent);
  opacity: 0.3;
  border-radius: var(--radius-md);
  bottom: 15%;
  right: 10%;
}

.feature-text h2 {
  margin-bottom: 1rem;
}

.feature-text p {
  font-size: 1.02rem;
  margin-bottom: 1.4rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 0.95rem;
  color: var(--color-text-soft);
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.5rem;
}

@media (max-width: 860px) {
  .feature-block, .feature-block.reverse {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* --- Stats Section ----------------------------------------- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1.5rem;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

@media (max-width: 700px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

/* --- Page Header (inner pages) ----------------------------- */
.page-header {
  padding: 9rem 0 4rem;
  background: var(--color-deep);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(196,139,60,0.1) 0%, transparent 70%);
}

.page-header h1 {
  color: var(--color-white);
  position: relative;
  margin-bottom: 0.6rem;
}

.page-header p {
  color: rgba(255,255,255,0.55);
  position: relative;
  font-size: 1.05rem;
}

/* --- Content (generic prose) ------------------------------- */
.content-prose {
  font-size: 1rem;
  line-height: 1.76;
}

.content-prose h2 {
  margin: 2.8rem 0 1rem;
  font-size: 1.6rem;
}

.content-prose h3 {
  margin: 2rem 0 0.8rem;
  font-size: 1.2rem;
}

.content-prose p {
  margin-bottom: 1.1rem;
}

.content-prose ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1.1rem;
}

.content-prose ul li {
  margin-bottom: 0.4rem;
  color: var(--color-text-soft);
}

.content-prose .last-updated {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-bottom: 2rem;
  font-style: italic;
}

/* --- Contact ----------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info-card {
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  padding: 2.8rem;
  color: var(--color-white);
}

.contact-info-card h3 {
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.contact-info-card p {
  color: rgba(255,255,255,0.62);
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.contact-detail-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.15rem;
}

.contact-detail-value {
  color: var(--color-white);
  font-weight: 500;
}

.contact-form-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.8rem;
  border: 1px solid var(--color-border-light);
}

.form-group {
  margin-bottom: 1.3rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-warm-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(196,139,60,0.1);
  background: var(--color-white);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* --- Footer ------------------------------------------------ */
.footer {
  background: var(--color-deep);
  color: rgba(255,255,255,0.6);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.92rem;
  margin-top: 0.8rem;
  max-width: 280px;
}

.footer h4 {
  color: var(--color-white);
  margin-bottom: 1.1rem;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.38);
}

@media (max-width: 800px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 500px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

/* --- Scroll Reveal ----------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Service Detail Blocks --------------------------------- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
  align-items: center;
}

.service-detail:last-child { border-bottom: none; }

.service-detail-number {
  font-size: 5rem;
  font-weight: 800;
  color: var(--color-cream);
  line-height: 1;
  margin-bottom: -0.5rem;
  letter-spacing: -0.04em;
}

.service-detail h3 {
  margin-bottom: 0.8rem;
}

.service-detail-visual {
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.service-detail-visual::after {
  content: '';
  position: absolute;
  width: 40%;
  height: 40%;
  border: 2px solid rgba(196,139,60,0.3);
  border-radius: var(--radius-md);
}

@media (max-width: 760px) {
  .service-detail { grid-template-columns: 1fr; }
}

/* --- Values Grid ------------------------------------------- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.value-card {
  text-align: center;
  padding: 2.5rem 1.8rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.value-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.value-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.2rem;
  background: var(--color-accent-pale);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

@media (max-width: 760px) {
  .values-grid { grid-template-columns: 1fr; }
}

/* --- Toast / Notification ---------------------------------- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  transition: all var(--transition-base);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* --- Accent Divider ---------------------------------------- */
.accent-divider {
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.accent-divider.center { margin: 0 auto; }

/* --- About Hero Stats -------------------------------------- */
.about-stats {
  display: flex;
  gap: 2.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.about-stat {
  text-align: center;
}

.about-stat-val {
  font-size: 1.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
}

.about-stat-lbl {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  margin-top: 0.2rem;
}