/* style.css — Cedillo Consulting Design System */
/* Fonts: Instrument Serif (display) + DM Sans (body) via Google Fonts + Fontshare */

:root {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 7rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Font Families */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}

/* ===== LIGHT MODE (Custom: Forest Green + Gold) ===== */
:root,
[data-theme='light'] {
  /* Surfaces — warm cream */
  --color-bg: #F7F5EF;
  --color-surface: #FCFBF7;
  --color-surface-2: #F2EFE8;
  --color-surface-offset: #EDE9E0;
  --color-surface-dynamic: #E5E0D5;
  --color-divider: #DDD8CC;
  --color-border: #D4CFC2;

  /* Text — deep green-black */
  --color-text: #1A2B1E;
  --color-text-muted: #5C6B5F;
  --color-text-faint: #9CA89E;
  --color-text-inverse: #F7F5EF;

  /* Primary — Forest Green */
  --color-primary: #2D5F3F;
  --color-primary-hover: #1F4530;
  --color-primary-active: #143020;
  --color-primary-highlight: #C8DBCE;

  /* Accent — Warm Gold */
  --color-accent: #B8860B;
  --color-accent-hover: #966F09;
  --color-accent-active: #6E5206;
  --color-accent-highlight: #EDE3C8;

  /* Semantic */
  --color-success: #437A22;
  --color-warning: #964219;
  --color-error: #A13544;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
}

/* ===== DARK MODE ===== */
[data-theme='dark'] {
  --color-bg: #0F1611;
  --color-surface: #161E17;
  --color-surface-2: #1B241D;
  --color-surface-offset: #1A2218;
  --color-surface-dynamic: #2A3328;
  --color-divider: #232C22;
  --color-border: #2E3A2C;

  --color-text: #D4DAD2;
  --color-text-muted: #8A9488;
  --color-text-faint: #5A6258;
  --color-text-inverse: #0F1611;

  --color-primary: #6BAF7E;
  --color-primary-hover: #5A9E6D;
  --color-primary-active: #4A8D5C;
  --color-primary-highlight: #2A3D2E;

  --color-accent: #E8B540;
  --color-accent-hover: #D4A230;
  --color-accent-active: #B88E20;
  --color-accent-highlight: #3D3520;

  --color-success: #6DAA45;
  --color-warning: #BB653B;
  --color-error: #DD6974;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0F1611;
    --color-surface: #161E17;
    --color-surface-2: #1B241D;
    --color-surface-offset: #1A2218;
    --color-surface-dynamic: #2A3328;
    --color-divider: #232C22;
    --color-border: #2E3A2C;
    --color-text: #D4DAD2;
    --color-text-muted: #8A9488;
    --color-text-faint: #5A6258;
    --color-text-inverse: #0F1611;
    --color-primary: #6BAF7E;
    --color-primary-hover: #5A9E6D;
    --color-primary-active: #4A8D5C;
    --color-primary-highlight: #2A3D2E;
    --color-accent: #E8B540;
    --color-accent-hover: #D4A230;
    --color-accent-active: #B88E20;
    --color-accent-highlight: #3D3520;
    --color-success: #6DAA45;
    --color-warning: #BB653B;
    --color-error: #DD6974;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ===== LAYOUT UTILITIES ===== */
.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container-wide {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container-narrow {
  max-width: var(--content-narrow);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}

.section-tight {
  padding-block: clamp(var(--space-8), 4vw, var(--space-16));
}

/* ===== HEADER / NAV ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-interactive);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.logo svg,
.logo img.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  object-fit: contain;
}

.logo img.brand-mark.light-only {
  display: block;
}
.logo img.brand-mark.dark-only {
  display: none;
}
[data-theme="dark"] .logo img.brand-mark.light-only {
  display: none;
}
[data-theme="dark"] .logo img.brand-mark.dark-only {
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav-toggle {
  display: none;
  font-size: var(--text-xl);
  color: var(--color-text);
  padding: var(--space-2);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--color-primary);
  background: var(--color-surface-2);
}

/* CTA button in nav */
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.btn-nav:hover {
  background: var(--color-primary-hover);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn-accent:hover {
  background: var(--color-accent-hover);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(in oklab,
    oklch(from var(--color-bg) l c h / 0.92) 0%,
    oklch(from var(--color-bg) l c h / 0.7) 50%,
    oklch(from var(--color-bg) l c h / 0.4) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-32) var(--space-4) var(--space-24);
  width: 100%;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 400;
  line-height: 1.05;
  max-width: 14ch;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.hero-title em {
  font-style: italic;
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 50ch;
  margin-bottom: var(--space-8);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ===== PAGE HEADER (interior pages) ===== */
.page-header {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-12);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.page-header-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.page-eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: var(--space-4);
}

.page-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.5;
}

/* ===== SECTION HEADINGS ===== */
.section-eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.6;
  margin-bottom: var(--space-10);
}

/* ===== CARDS ===== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card-title {
  font-size: var(--text-lg);
  font-weight: 500;
  margin-bottom: var(--space-3);
  font-family: var(--font-display);
}

.card-text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Grid for cards */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
}

/* ===== STATS ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
  gap: var(--space-8);
  text-align: center;
}

.stat-value {
  font-size: var(--text-2xl);
  font-weight: 400;
  font-family: var(--font-display);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== SPLIT LAYOUT ===== */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.split-image {
  border-radius: var(--radius-lg);
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
  box-shadow: var(--shadow-md);
}

/* ===== TESTIMONIALS ===== */
.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-10);
}

.testimonial-quote {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  font-style: italic;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.testimonial-quote::before {
  content: '\201C';
  font-size: 1.5em;
  color: var(--color-accent);
  line-height: 0;
  vertical-align: -0.3em;
  margin-right: 0.1em;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--text-base);
  font-family: var(--font-body);
  flex-shrink: 0;
}

.testimonial-name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-role {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-12), 5vw, var(--space-20));
  text-align: center;
  margin: var(--space-16) 0;
}

.cta-section .section-eyebrow {
  color: var(--color-accent);
}

.cta-title {
  font-size: var(--text-2xl);
  font-weight: 400;
  margin-bottom: var(--space-4);
  color: var(--color-text-inverse);
}

.cta-text {
  font-size: var(--text-base);
  opacity: 0.85;
  max-width: 50ch;
  margin: 0 auto var(--space-8);
}

.cta-section .btn-accent {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

/* ===== CONTACT FORM ===== */
.contact-form {
  display: grid;
  gap: var(--space-5);
  max-width: var(--content-narrow);
}

.form-row {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-base);
  font-family: var(--font-body);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ===== CONTACT INFO ===== */
.contact-info {
  display: grid;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-icon svg {
  width: 20px;
  height: 20px;
}

.contact-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.contact-value {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
}

a.contact-value:hover {
  color: var(--color-primary);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding-block: var(--space-12) var(--space-8);
}

.footer-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.footer-logo svg,
.footer-logo img.brand-mark {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.footer-logo img.brand-mark.light-only {
  display: block;
}
.footer-logo img.brand-mark.dark-only {
  display: none;
}
[data-theme="dark"] .footer-logo img.brand-mark.light-only {
  display: none;
}
[data-theme="dark"] .footer-logo img.brand-mark.dark-only {
  display: block;
}

.footer-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 40ch;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  font-family: var(--font-body);
  color: var(--color-text);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.footer-col a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  max-width: var(--content-wide);
  margin: var(--space-8) auto 0;
  padding: var(--space-6) var(--space-4) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ===== FEATURES LIST ===== */
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.feature-check {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-check svg {
  width: 14px;
  height: 14px;
}

.feature-text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.6;
}

.feature-text strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ===== RESPONSIVE NAV ===== */
@media (max-width: 900px) {
  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    gap: var(--space-2);
    box-shadow: var(--shadow-md);
  }

  .nav-list.open {
    display: flex;
  }

  .nav-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-link.active {
    background: var(--color-primary-highlight);
  }

  .nav-toggle {
    display: block;
  }

  .btn-nav {
    display: none;
  }
}

/* ===== UTILITIES ===== */
.text-center {
  text-align: center;
}

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

.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.bg-surface {
  background: var(--color-surface);
}

.bg-offset {
  background: var(--color-surface-offset);
}

.rounded {
  border-radius: var(--radius-lg);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.animate-in-delay-1 { animation-delay: 0.1s; }
.animate-in-delay-2 { animation-delay: 0.2s; }
.animate-in-delay-3 { animation-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .animate-in {
    animation: none;
  }
}