/* ============================================
   DataMinded.AI — Design System & Global Styles
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,700;1,400;1,700&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Colors */
  --color-primary: #F47520;
  --color-primary-hover: #E06510;
  --color-primary-light: #FFF3EB;
  --color-primary-soft: #FDECD8;
  
  --color-bg: #FFFFFF;
  --color-bg-warm: #FFFAF5;
  --color-bg-cream: #FFF8F2;
  --color-bg-card: #FBF7F4;
  --color-bg-dark: #1A1A1A;
  
  --color-text: #1A1A1A;
  --color-text-secondary: #5A5A5A;
  --color-text-muted: #8A8A8A;
  --color-text-light: #FFFFFF;
  
  --color-border: #E8E0D8;
  --color-border-light: #F0EBE6;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.25rem;
  --fs-5xl: 4rem;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  
  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
  
  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --shadow-card: 0 2px 16px rgba(244, 117, 32, 0.06);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

.section {
  padding: var(--space-5xl) 0;
}

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

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

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

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

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.15;
  font-weight: 700;
}

.heading-display {
  font-family: var(--font-sans);
  font-size: var(--fs-5xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.heading-display em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-primary);
}

.heading-section {
  font-family: var(--font-sans);
  font-size: var(--fs-4xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.heading-section em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-primary);
}

.subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 540px;
}

.tag {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 6px 16px;
  border-radius: var(--radius-full);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(244, 117, 32, 0.35);
}

.btn--primary .btn-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  transition: all var(--transition-base);
}

.btn--primary:hover .btn-arrow {
  background: rgba(255,255,255,0.3);
  transform: translateX(2px);
}

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

.btn--outline:hover {
  border-color: var(--color-text);
  transform: translateY(-1px);
}

.btn--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
}

.btn--dark:hover {
  background: #333;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

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

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--color-text);
}

.nav__logo svg, .nav__logo img {
  width: 28px;
  height: 28px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav__link {
  font-size: var(--fs-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-primary);
  transition: width var(--transition-base);
}

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

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

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

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

.nav__signin:hover {
  color: var(--color-text);
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav__hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

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

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}

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

/* ---- Cards ---- */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

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

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
  font-size: var(--fs-xl);
}

.card__title {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

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

/* ---- Footer ---- */
.footer {
  background: var(--color-bg-warm);
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border-light);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand {
  max-width: 280px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.footer__logo svg, .footer__logo img {
  width: 24px;
  height: 24px;
}

.footer__quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.footer__col-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

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

.footer__col-links a {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

.footer__col-links a:hover {
  color: var(--color-primary);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.footer__social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-xl);
}

.footer__bottom-links a:hover {
  color: var(--color-text);
}

/* ---- Page-specific layout templates ---- */
.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
  background: linear-gradient(180deg, var(--color-bg-cream) 0%, var(--color-bg) 100%);
}

.page-hero__tag {
  margin-bottom: var(--space-lg);
}

.page-hero__title {
  margin-bottom: var(--space-lg);
}

.page-hero__subtitle {
  margin-bottom: var(--space-2xl);
}

/* ---- Form Styles ---- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(244, 117, 32, 0.1);
}

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

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

/* ---- Animations ---- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  :root {
    --fs-5xl: 3rem;
    --fs-4xl: 2.5rem;
  }
  
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --fs-5xl: 2.5rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.75rem;
  }
  
  .container {
    padding: 0 var(--space-lg);
  }
  
  .section {
    padding: var(--space-3xl) 0;
  }
  
  /* Mobile nav */
  .nav__hamburger {
    display: flex;
  }
  
  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    gap: var(--space-2xl);
    z-index: 999;
  }
  
  .nav__links.open {
    display: flex;
  }
  
  .nav__links .nav__link {
    font-size: var(--fs-xl);
  }
  
  .nav__actions {
    gap: var(--space-md);
  }
  
  .nav__signin {
    display: none;
  }
  
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --fs-5xl: 2rem;
    --fs-4xl: 1.75rem;
  }
}