/* ============================================
   PazalTech — QA Engineer & SDET
   Design System & Styles
   ============================================ */

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

/* --- Custom Properties (Dark Theme Default) --- */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --text-primary: #e4e4ef;
  --text-secondary: #8888a0;
  --accent: #6c63ff;
  --accent-hover: #7b73ff;
  --accent-glow: rgba(108, 99, 255, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --overlay: rgba(10, 10, 15, 0.85);
  --success: #34d399;
  --error: #f87171;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --font-size-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.875rem);
  --font-size-base: clamp(0.9375rem, 0.875rem + 0.3vw, 1rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --font-size-xl: clamp(1.5rem, 1.25rem + 1vw, 2rem);
  --font-size-2xl: clamp(2rem, 1.5rem + 2vw, 3rem);
  --font-size-3xl: clamp(2.5rem, 1.75rem + 3vw, 4rem);
  --line-height: 1.6;
  --letter-spacing-tight: -0.02em;
  --letter-spacing-wide: 0.05em;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 1100px;
  --nav-height: 64px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

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

/* --- Light Theme --- */
[data-theme="light"] {
  --bg-primary: #f5f5fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e8e8f0;
  --text-primary: #1a1a2e;
  --text-secondary: #5a5a72;
  --accent: #5a52d5;
  --accent-hover: #4a42c5;
  --accent-glow: rgba(90, 82, 213, 0.08);
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
  --overlay: rgba(245, 245, 250, 0.9);
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

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

/* --- Skip to Content --- */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  z-index: 1000;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-to-content:focus {
  top: var(--space-md);
}

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

/* --- Links --- */
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
}

/* --- Headings --- */
h1, h2, h3 {
  font-weight: 600;
  letter-spacing: var(--letter-spacing-tight);
  line-height: 1.2;
}

/* --- Section --- */
.section {
  padding: var(--space-4xl) 0;
}

.section--alt {
  background-color: var(--bg-secondary);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.section__subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  max-width: 500px;
  margin: 0 auto;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--overlay);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: var(--letter-spacing-tight);
}

.nav__logo-mark {
  width: 28px;
  height: 28px;
  color: var(--accent);
  transition: transform var(--transition-base);
}

.nav__logo:hover .nav__logo-mark {
  transform: scale(1.08);
}

.nav__logo-text {
  color: var(--text-primary);
}

.nav__logo-text span {
  font-weight: 300;
  opacity: 0.5;
}

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

.nav__link {
  position: relative;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-primary);
}

.nav__link--active::after {
  width: 100%;
}

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

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1.125rem;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-tertiary);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100vh;
  padding: var(--nav-height) var(--space-lg) var(--space-4xl);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--accent);
  font-weight: 500;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
}

.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.hero__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  letter-spacing: var(--letter-spacing-tight);
}

.hero__title span {
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 550px;
  margin-bottom: var(--space-2xl);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-xl);
  background: var(--accent);
  color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.hero__cta:hover {
  background: var(--accent-hover);
  color: #ffffff;
  transform: scale(1.03);
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-2xl);
  color: #6e6e82;
  font-size: var(--font-size-xs);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

[data-theme="light"] .hero__scroll-hint {
  color: #6e6e82;
}

.hero__scroll-hint svg {
  width: 20px;
  height: 20px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(6px); }
  60% { transform: translateY(3px); }
}

/* ============================================
   About
   ============================================ */
.about__content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.about__text {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.8;
}

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

/* ============================================
   Services
   ============================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-fast);
}

.service-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 32px var(--accent-glow);
  transform: translateY(-2px);
}

.service-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

.service-card__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.service-card__desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   Tech Stack
   ============================================ */
.tech__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.tech-badge__icon {
  font-size: 1rem;
}

/* ============================================
   Contact
   ============================================ */
.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

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

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

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

.form-group input,
.form-group textarea {
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

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

.form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-xl);
  background: var(--accent);
  color: #ffffff;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  align-self: flex-start;
}

.form-submit:hover {
  background: var(--accent-hover);
  transform: scale(1.02);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  display: none;
}

.form-status--success {
  display: block;
  color: var(--success);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.2);
}

.form-status--error {
  display: block;
  color: var(--error);
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

/* Contact Info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

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

.contact-info__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info__label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: 2px;
}

.contact-info__value {
  font-size: var(--font-size-base);
  font-weight: 500;
}

.contact-info__value a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-info__value a:hover {
  color: var(--accent);
}

.contact-info__divider {
  width: 100%;
  height: 1px;
  background: var(--border);
}

.contact-info__business {
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.contact-info__business-title {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--space-sm);
}

.contact-info__business p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-info__business strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer__text {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.footer__text a {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer__text a:hover {
  color: var(--text-primary);
}

/* ============================================
   Cookie Consent Banner
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-md) var(--space-lg);
  z-index: 200;
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

.cookie-banner--visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  max-width: var(--container-max);
  margin: 0 auto;
}

.cookie-banner__text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.cookie-btn {
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-family);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.cookie-btn--accept {
  background: var(--accent);
  color: #ffffff;
}

.cookie-btn--accept:hover {
  background: var(--accent-hover);
  transform: scale(1.02);
}

.cookie-btn--decline {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.cookie-btn--decline:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* ============================================
   Responsive (< 768px)
   ============================================ */
@media (max-width: 767px) {

  /* Nav */
  .nav__hamburger {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--nav-height));
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }

  .nav__menu--open {
    transform: translateX(0);
  }

  .nav__links {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .nav__link {
    font-size: var(--font-size-lg);
  }

  /* Hero */
  .hero {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    min-height: auto;
    padding-bottom: var(--space-3xl);
  }

  .hero__scroll-hint {
    display: none;
  }

  /* Sections */
  .section {
    padding: var(--space-3xl) 0;
  }

  /* Services */
  .services__grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  /* Cookie banner */
  .cookie-banner__inner {
    flex-direction: column;
    text-align: center;
  }

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