/* Mobile-First Base Styles (Default for all viewports, optimized for mobile) */

/* CSS Variables & Design Tokens */
:root {
  --color-primary: #1C315E;
  --color-secondary: #0F172A;
  --color-accent: #F97316;
  --color-accent-strong: #EA580C;
  --color-success: #22C55E;
  --color-warning: #EAB308;
  --color-error: #DC2626;
  --color-neutral-100: #F8FAFC;
  --color-neutral-200: #F1F5F9;
  --color-neutral-400: #94A3B8;
  --color-neutral-600: #475569;
  --font-primary: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-secondary: "Merriweather", "Georgia", serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, "Roboto Mono", monospace;
  --content-max-width: 1120px;
  --border-radius-base: 12px;
  --shadow-soft: 0 20px 40px rgba(15, 23, 42, 0.08);
  --transition-base: 160ms ease-out;
}

/* Base Resets */
* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-primary);
  font-size: 1.05rem;
  line-height: 1.6;
  background-color: var(--color-neutral-100);
  color: var(--color-secondary);
}

body:focus-within {
  scroll-behavior: smooth;
}

/* Typography - Mobile optimized */
a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

main {
  display: block;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 1.75rem);
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

ul,
ol {
  margin-top: 0;
  margin-bottom: 1.5rem;
  padding-left: 1.25rem;
}

blockquote {
  margin: 0;
  padding-left: 24px;
  border-left: 4px solid var(--color-accent);
  color: var(--color-secondary);
}

/* Sections - Mobile */
section {
  padding: 56px 1.125rem;
}

section.light {
  background: #fff;
}

section.alt {
  background: var(--color-neutral-200);
  position: relative;
  overflow: hidden;
}

section.alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../assets/pattern-grid.svg');
  background-repeat: repeat;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

section.alt > * {
  position: relative;
  z-index: 1;
}

section + section.light::before,
section + section.alt::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 200px;
  background-image: url('../assets/pattern-waves.svg');
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

/* Layout Utilities - Mobile */
.container {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}

.flex {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.divider {
  width: 100%;
  height: 1px;
  background: rgba(15, 23, 42, 0.1);
  margin: 96px auto;
}

/* Cards & Components - Mobile */
.card {
  background: #fff;
  padding: 32px;
  border-radius: var(--border-radius-base);
  box-shadow: var(--shadow-soft);
}

.card.accent {
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.card.with-icon {
  position: relative;
  padding-top: 2.5rem;
}

.card.with-icon .card-icon {
  margin-bottom: 1rem;
}

.card.with-icon:hover .card-icon {
  transform: translateY(-4px);
  transition: transform var(--transition-base);
}

.card-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1.5rem;
  display: block;
}

.card-icon[role="img"] {
  speak: none;
}

.highlight {
  background: #fff;
  border-left: 4px solid var(--color-accent);
  padding: 32px;
  border-radius: var(--border-radius-base);
  box-shadow: var(--shadow-soft);
}

.callout {
  background: rgba(28, 49, 94, 0.08);
  padding: 24px;
  border-radius: var(--border-radius-base);
  border: 1px solid rgba(28, 49, 94, 0.12);
}

/* Buttons - Mobile */
.button,
button,
input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
  background-color: var(--color-accent);
  color: #fff;
}

.button.secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.button.ghost {
  background-color: transparent;
  color: var(--color-primary);
  border: none;
}

.button:focus-visible,
button:focus-visible,
input[type="submit"]:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.button:hover,
button:hover,
input[type="submit"]:hover {
  transform: scale(1.02);
  box-shadow: 0 10px 20px rgba(249, 115, 22, 0.2);
}

.button.secondary:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.button.disabled,
button:disabled,
input[type="submit"]:disabled {
  background-color: var(--color-neutral-400);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Header & Navigation - Mobile */
header {
  background: rgba(248, 250, 252, 0.9);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

nav {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 20px 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

nav .brand span {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

nav .brand img {
  width: 80px;
  height: auto;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 24px;
}

#primary-navigation {
  display: none;
  flex-direction: column;
  width: 100%;
  background: rgba(248, 250, 252, 0.96);
  padding: 16px 0;
}

#primary-navigation.is-open {
  display: flex;
}

#primary-navigation li {
  padding: 10px 1.25rem;
}

nav ul li a {
  font-weight: 500;
  color: var(--color-secondary);
}

nav .nav-actions {
  display: none;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 12px 18px;
  background: var(--color-accent);
  color: #fff;
  z-index: 1001;
  border-radius: 999px;
}

.lang-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  margin-left: auto;
}

.lang-picker a, .lang-picker span {
  color: var(--color-secondary);
  text-decoration: none;
}

.lang-picker a:hover, .lang-picker a:focus {
  text-decoration: underline;
}

.lang-picker .active {
  color: var(--color-accent);
}

.menu-toggle {
  display: inline-flex;
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}

.menu-toggle:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Footer - Mobile */
footer {
  background: var(--color-secondary);
  color: #e2e8f0;
  padding: 64px 1.5rem 120px;
}

footer a {
  color: #fff;
}

.footer-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.footer-brand {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 8px;
}

/* Forms - Mobile */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

label {
  font-weight: 600;
}

input,
textarea,
select {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  color: var(--color-secondary);
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.form-helper {
  font-size: 0.95rem;
  color: var(--color-neutral-600);
}

/* Pills & Status - Mobile */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(28, 49, 94, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  background: rgba(34, 197, 94, 0.2);
  color: var(--color-success);
  font-weight: 600;
}

.status-pill::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Lists - Mobile */
.list-inline {
  padding: 0;
  list-style: none;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  color: var(--color-neutral-600);
  font-size: 0.95rem;
}

.list-inline li::before {
  content: "•";
  margin-right: 8px;
  color: var(--color-accent);
}

/* Illustrations - Mobile */
.illustration {
  margin: 0 0 24px;
  display: flex;
  justify-content: center;
  position: relative;
}

.illustration img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-base);
  box-shadow: var(--shadow-soft);
}

.illustration::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
  pointer-events: none;
  border-radius: var(--border-radius-base);
}

/* Testimonials */
.testimonial {
  font-family: var(--font-secondary);
  font-size: 1.125rem;
  color: var(--color-secondary);
}

/* Hero Section - Mobile */
.hero {
  background-image:
          linear-gradient(rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4)),
          url("/assets/hero-background.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  padding: 96px 1.125rem 72px;
}

.hero .container {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
  align-items: center;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--color-neutral-600);
  margin-bottom: 1.5rem;
}

.hero .cta-group {
  display: flex;
  gap: 16px;
  flex-direction: column;
  align-items: stretch;
}

.hero .illustration {
  margin-bottom: 24px;
}

.services-hero .illustration,
.contact-hero .illustration,
.about-hero .illustration {
  margin-bottom: 24px;
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  font-weight: 600;
  color: var(--color-neutral-600);
  font-size: 0.95rem;
}

/* Accordion - Mobile */
.accordion {
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: var(--border-radius-base);
  overflow: hidden;
}

.accordion-item + .accordion-item {
  border-top: 1px solid rgba(15, 23, 42, 0.12);
}

.accordion details {
  border: none;
}

.accordion summary {
  width: 100%;
  background: #fff;
  color: var(--color-primary);
  padding: 24px;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary span {
  display: block;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-neutral-600);
  margin-top: 3px;
}

.accordion details[open] summary {
  background: rgba(248, 250, 252, 0.9);
}

.accordion details .content {
  padding: 0 24px 24px;
  background: rgba(248, 250, 252, 0.7);
}

.accordion summary::after {
  content: "+";
  margin-left: auto;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-primary);
}

.accordion details[open] summary::after {
  content: "−";
}

/* Mobile CTA Bar */
.mobile-cta-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(28, 49, 94, 0.95);
  padding: 16px;
  gap: 12px;
  justify-content: center;
  box-shadow: 0 -10px 30px rgba(15, 23, 42, 0.25);
  z-index: 999;
}

.mobile-cta-bar a {
  flex: 1;
  text-align: center;
  color: #fff;
  background: var(--color-accent);
  padding: 14px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
}

/* Analytics Placeholder */
.analytics-placeholder {
  display: none;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}