/* ================================================
   SABFAB.DEV — Premium Security Portfolio
   Design System & Styles
   ================================================ */

/* ---- CSS Custom Properties ---- */
:root {
  /* Colors - Dark Theme */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #0f0f16;
  --color-surface: #14141c;
  --color-surface-elevated: #1a1a25;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);

  /* Accent Colors */
  --color-accent-primary: #00f5d4;
  --color-accent-secondary: #9b5de5;
  --color-accent-glow: rgba(0, 245, 212, 0.3);
  --color-accent-glow-secondary: rgba(155, 93, 229, 0.3);

  /* Text Colors */
  --color-text-primary: #f8f8fc;
  --color-text-secondary: #8b8b9a;
  --color-text-muted: #5a5a6a;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  /* 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;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--color-accent-glow);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 112px;
}

@media (max-width: 768px) {
  :root {
    --nav-height: 88px;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(155, 93, 229, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 245, 212, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(155, 93, 229, 0.05) 0%, transparent 40%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---- Typography ---- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

section {
  padding: var(--space-24) 0;
}

/* ---- Components: Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base);
}

.nav.scrolled {
  background-color: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--color-accent-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: var(--space-4);
  padding-left: var(--space-4);
  border-left: 1px solid var(--color-border);
}

.lang-btn {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  background: transparent;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

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

.lang-btn.active {
  color: var(--color-accent-primary);
  background: rgba(0, 245, 212, 0.1);
}

.lang-divider {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.lang-toggle-mobile {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-top: var(--space-6);
  margin-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-primary);
  transition: width var(--transition-base);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.nav-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform var(--transition-fast);
}

/* Mobile Navigation */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 1);
  padding: var(--space-8);
  flex-direction: column;
  gap: var(--space-6);
  z-index: 2000;
  overflow-y: auto;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.nav-mobile.active {
  display: flex;
}

.nav-mobile .nav-link {
  font-size: var(--font-size-lg);
}

/* ---- Components: Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-primary), #00d4b8);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--color-accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-hover);
}

.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-accent-primary);
}

/* ---- Components: Cards ---- */
.card {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-elevated) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

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

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.card-bullets {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.card-bullet {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.card-bullet::before {
  content: '→';
  color: var(--color-accent-primary);
  flex-shrink: 0;
}

.card-deliverable {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card-deliverable strong {
  color: var(--color-accent-primary);
}

/* ---- Sections: Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
}

.hero-content {
  max-width: 800px;
}

.hero-headline {
  font-size: clamp(2.5rem, 6vw, 4rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero-subheadline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 600px;
  line-height: 1.7;
}

.hero-proof {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}

.hero-proof-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.hero-proof-item::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: rgba(0, 245, 212, 0.15);
  color: var(--color-accent-primary);
  border-radius: 50%;
  font-size: 10px;
  flex-shrink: 0;
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.hero-trust {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  max-width: 500px;
}

/* ---- Sections: Services ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.services-note {
  margin-top: var(--space-8);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

/* ---- Sections: Method ---- */
.method-timeline {
  margin-top: var(--space-12);
  position: relative;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-8);
}

.method-step {
  position: relative;
  padding-left: var(--space-10);
}

.method-step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: var(--color-bg-primary);
  font-size: var(--font-size-sm);
  font-weight: 700;
  border-radius: 50%;
}

.method-step-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.method-step-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.method-deliverables {
  margin-top: var(--space-12);
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.method-deliverables h3 {
  margin-bottom: var(--space-6);
  font-size: var(--font-size-lg);
}

.method-deliverables-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-3);
}

.method-deliverables-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.method-deliverables-list li::before {
  content: '✓';
  color: var(--color-accent-primary);
}

/* ---- Sections: Focus Areas ---- */
.focus-list {
  margin-top: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 700px;
}

.focus-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.focus-item:hover {
  border-color: var(--color-border-hover);
  background: var(--color-surface-elevated);
}

.focus-item-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 245, 212, 0.1);
  color: var(--color-accent-primary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  flex-shrink: 0;
}

/* ---- Sections: Proof ---- */
.proof-header {
  margin-bottom: var(--space-12);
}

.proof-subheadline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
  max-width: 600px;
}

.proof-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.proof-point {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: linear-gradient(90deg, rgba(0, 245, 212, 0.08), transparent);
  border-left: 3px solid var(--color-accent-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.proof-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.proof-case {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.proof-case-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-accent-secondary);
}

.proof-case-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.proof-note {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

/* ---- Sections: FAQ ---- */
.faq-list {
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 800px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-border-hover);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 1001;
}

.nav-logo img {
  height: 96px;
  /* MAX DOMINANCE size */
  width: auto;
  display: block;
}

@media (max-width: 768px) {
  .nav-logo img {
    height: 72px;
    /* Large mobile size */
  }
}

.faq-question:hover {
  color: var(--color-accent-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  color: var(--color-accent-primary);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-content {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---- Sections: Contact ---- */
.contact-content {
  max-width: 600px;
}

.contact-text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
  margin-bottom: var(--space-10);
}

.contact-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-cta {
  margin-bottom: var(--space-4);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
}

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

.contact-item-value {
  color: var(--color-text-primary);
}

.contact-item-value a {
  color: var(--color-accent-primary);
  transition: opacity var(--transition-fast);
}

.contact-item-value a:hover {
  opacity: 0.8;
}

/* ---- Contact Form ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}

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

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-input {
  padding: var(--space-4);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

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

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b8b9a' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

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

.form-checkbox-group {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-3);
}

.form-checkbox {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-accent-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.form-checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.form-checkbox-label a {
  color: var(--color-accent-primary);
  text-decoration: underline;
}

.form-checkbox-label a:hover {
  opacity: 0.8;
}

.btn-submit {
  align-self: flex-start;
  margin-top: var(--space-4);
}

/* ---- Footer ---- */
.footer {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  text-align: center;
}

.footer-microcopy {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-8);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-primary);
}

/* ---- Section Headers ---- */
.section-header {
  margin-bottom: var(--space-4);
}

.section-title {
  display: inline-block;
  font-size: var(--font-size-3xl);
  letter-spacing: -0.02em;
}

/* ---- Scroll Animations ---- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  :root {
    --nav-height: 88px;
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  section {
    padding: var(--space-16) 0;
  }

  .nav-links {
    display: none;
  }

  .nav-menu-btn {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-16));
    padding-bottom: var(--space-16);
  }

  .hero-ctas {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .method-steps {
    grid-template-columns: 1fr;
  }

  .proof-cases {
    grid-template-columns: 1fr;
  }
}