/* ============================================
   Nad Wasit AI — Styles
   ============================================ */

/* ------------------------------------------
   1. CSS Custom Properties
   ------------------------------------------ */
:root {
  /* Colors */
  --color-primary: #00573F;
  --color-primary-light: #00875A;
  --color-accent: #C5A552;
  --color-accent-light: #D4B96B;
  --color-dark: #1A1A2E;
  --color-body: #4A4A5A;
  --color-light-bg: #F8F7F4;
  --color-white: #FFFFFF;
  --color-border: #E2E0DB;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --section-padding: 80px;
  --section-padding-mobile: 48px;
  --container-max: 1200px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Transitions */
  --transition: 0.3s ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-header: 0 2px 10px rgba(0,0,0,0.08);

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

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-body);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ------------------------------------------
   3. Typography
   ------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-dark);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--spacing-md);
}

p:last-child {
  margin-bottom: 0;
}

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

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

/* ------------------------------------------
   4. Layout Utilities
   ------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

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

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  align-items: center;
  justify-content: space-between;
}

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.section-header p {
  margin-top: var(--spacing-md);
  font-size: 1.125rem;
  color: var(--color-body);
}

.section--dark .section-header p {
  color: #b0b0c0;
}

/* ------------------------------------------
   5. Components
   ------------------------------------------ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}

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

.btn--primary:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn--accent:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

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

.btn--white:hover {
  background-color: var(--color-light-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-white);
  transition: box-shadow var(--transition);
}

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

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo svg {
  width: 40px;
  height: 40px;
}

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

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

.nav__links {
  display: flex;
  gap: var(--spacing-xl);
}

.nav__link {
  font-weight: 500;
  color: var(--color-body);
  transition: color var(--transition);
  position: relative;
}

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

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

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

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

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

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

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

/* --- Cards --- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition);
  border: 1px solid var(--color-border);
}

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

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background-color: rgba(0, 87, 63, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.card__icon svg {
  width: 28px;
  height: 28px;
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.card__text {
  font-size: 0.95rem;
  color: var(--color-body);
}

.card__list {
  margin-top: var(--spacing-md);
}

.card__list li {
  padding: var(--spacing-xs) 0;
  font-size: 0.9rem;
  color: var(--color-body);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.card__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 8px;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-dark);
  color: #b0b0c0;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand p {
  margin-top: var(--spacing-md);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer__heading {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer__links li {
  margin-bottom: var(--spacing-sm);
}

.footer__links a {
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}

.footer__contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-lg);
  font-size: 0.85rem;
}

/* --- Forms --- */
.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
  color: var(--color-dark);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background-color: var(--color-white);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 87, 63, 0.1);
}

.form__input--error {
  border-color: #dc3545;
}

.form__error {
  color: #dc3545;
  font-size: 0.8rem;
  margin-top: var(--spacing-xs);
  display: none;
}

.form__textarea {
  resize: vertical;
  min-height: 140px;
}

.form__success {
  display: none;
  padding: var(--spacing-lg);
  background-color: rgba(0, 135, 90, 0.08);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  text-align: center;
  font-weight: 500;
}

/* ------------------------------------------
   6. Page-Specific Sections
   ------------------------------------------ */

/* --- Page Hero (inner pages) --- */
.page-hero {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 140px 0 60px;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.page-hero p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.9;
}

/* --- Home Hero --- */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #004030 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(197, 165, 82, 0.08);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero h1 {
  color: var(--color-white);
  font-size: 3.5rem;
  margin-bottom: var(--spacing-lg);
}

.hero h1 .text-accent {
  color: var(--color-accent);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  line-height: 1.7;
}

.hero__buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* --- Value Propositions --- */
.value-props {
  margin-top: -60px;
  position: relative;
  z-index: 2;
}

.value-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.value-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: rgba(0, 87, 63, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-primary);
}

.value-card__icon svg {
  width: 28px;
  height: 28px;
}

.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

/* --- Services Preview (Home) --- */
.services-preview .card__icon {
  background-color: rgba(0, 87, 63, 0.08);
}

.services-preview .card {
  text-align: left;
}

/* --- Stats / Trust --- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  text-align: center;
}

.stat__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.stat__label {
  font-size: 0.95rem;
  color: #b0b0c0;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #004030 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.cta-banner p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  opacity: 0.9;
}

/* --- About: Mission & Vision --- */
.mission-vision {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.mission-vision__card {
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.mission-vision__card h3 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.mission-vision__card svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

/* --- About: Approach Steps --- */
.approach-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  counter-reset: step;
}

.approach-step {
  text-align: center;
  position: relative;
  counter-increment: step;
}

.approach-step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
}

.approach-step h4 {
  margin-bottom: var(--spacing-sm);
}

.approach-step p {
  font-size: 0.9rem;
}

/* --- Services: Process Steps --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.process-step {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

.process-step__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(0, 87, 63, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-primary);
}

.process-step__icon svg {
  width: 32px;
  height: 32px;
}

.process-step h4 {
  margin-bottom: var(--spacing-sm);
}

.process-step p {
  font-size: 0.9rem;
}

/* --- Contact: Two Column --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 87, 63, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-info__icon svg {
  width: 22px;
  height: 22px;
}

.contact-info__item h4 {
  margin-bottom: var(--spacing-xs);
}

.contact-info__item p {
  font-size: 0.9rem;
}

.map-placeholder {
  width: 100%;
  height: 250px;
  border-radius: var(--radius-lg);
  background-color: var(--color-light-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-body);
  font-size: 0.9rem;
  margin-top: var(--spacing-xl);
}

/* --- Location Section --- */
.location-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.location-card__icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(0, 87, 63, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.location-card__icon svg {
  width: 36px;
  height: 36px;
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ------------------------------------------
   7. Responsive Breakpoints
   ------------------------------------------ */

/* Tablet (768px) */
@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }

  .section {
    padding: var(--section-padding-mobile) 0;
  }

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

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px var(--spacing-xl) var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: right var(--transition);
  }

  .nav--open {
    right: 0;
  }

  .nav__links {
    flex-direction: column;
    gap: var(--spacing-lg);
    width: 100%;
  }

  .nav__link {
    font-size: 1.125rem;
  }

  /* Hero */
  .hero {
    padding: 120px 0 70px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  /* Grids */
  .grid--3, .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--2 {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .approach-steps,
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .mission-vision {
    grid-template-columns: 1fr;
  }

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

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

  /* Value props */
  .value-props {
    margin-top: -40px;
  }

  .location-card {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile (480px) */
@media (max-width: 480px) {
  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.5rem; }

  .container {
    padding: 0 var(--spacing-md);
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero__buttons {
    flex-direction: column;
  }

  .grid--3, .grid--4, .grid--2 {
    grid-template-columns: 1fr;
  }

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

  .approach-steps,
  .process-steps {
    grid-template-columns: 1fr;
  }

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

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

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

  .page-hero {
    padding: 120px 0 40px;
  }

  .stat__number {
    font-size: 2rem;
  }
}

/* Overlay for mobile nav */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.nav-overlay--visible {
  opacity: 1;
  visibility: visible;
}