/* ============================================================
   GRAVIX — Portfolio Stylesheet
   Colour palette: warm beige, deep forest green, warm brown, near-black
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Primary palette */
  --clr-bg:          #F5F0E8;     /* warm beige — page background          */
  --clr-bg-alt:      #EDE7DB;     /* slightly deeper beige — alternate rows */
  --clr-accent:      #1B3A2D;     /* deep forest green — main accent        */
  --clr-accent-light:#2A5742;     /* lighter green for hover states         */
  --clr-brown:       #8B6F4E;     /* warm brown — secondary elements        */
  --clr-brown-light: #A6896A;     /* lighter brown for hover                */
  --clr-text:        #1A1A18;     /* near-black — headings & body           */
  --clr-text-muted:  #5C5A55;     /* muted text                             */
  --clr-white:       #FFFFFF;
  --clr-card:        #FAF7F2;     /* card backgrounds                       */
  --clr-border:      #D9D1C4;     /* subtle borders                         */

  /* Typography */
  --ff-heading: 'DM Serif Display', Georgia, serif;
  --ff-body:    'Inter', system-ui, sans-serif;

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

  /* Layout */
  --max-width: 1140px;
  --nav-h:     72px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

body {
  font-family: var(--ff-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

img, iframe {
  display: block;
  max-width: 100%;
}

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

ul {
  list-style: none;
}

/* ---------- Utility ---------- */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.section-title {
  font-family: var(--ff-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: var(--space-xs);
}

.section-subtitle {
  text-align: center;
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-lg);
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--ff-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}

.btn-secondary:hover {
  background-color: var(--clr-accent);
  color: var(--clr-white);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background-color: rgba(245, 240, 232, 0.85);
  transition: background-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}

.navbar.scrolled {
  background-color: rgba(245, 240, 232, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 8px rgba(26, 26, 24, 0.06);
}

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

.nav-logo {
  font-family: var(--ff-heading);
  font-size: 1.35rem;
  color: var(--clr-accent);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text);
  position: relative;
  transition: color 0.25s var(--ease);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--clr-accent);
  transition: width 0.3s var(--ease);
}

.nav-links a:hover {
  color: var(--clr-accent);
}

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

/* Language toggle */
.lang-toggle {
  background: none;
  border: 2px solid var(--clr-border);
  border-radius: 4px;
  padding: 0.3rem 0.65rem;
  font-family: var(--ff-body);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--clr-text-muted);
  transition: border-color 0.25s var(--ease);
}

.lang-toggle:hover {
  border-color: var(--clr-accent);
}

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

.lang-separator {
  margin: 0 0.15rem;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--clr-text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  background: linear-gradient(165deg, var(--clr-bg) 0%, var(--clr-bg-alt) 100%);
}

.hero-content {
  text-align: center;
  max-width: 750px;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--ff-heading);
  font-size: clamp(2.5rem, 7vw, 4.2rem);
  line-height: 1.15;
  margin-bottom: var(--space-sm);
  color: var(--clr-text);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xs);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-byline {
  font-size: 1rem;
  color: var(--clr-brown);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Responsive 16:9 video wrapper (default) */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: 10px;
  background-color: var(--clr-text);
}

/* Vertical 9:16 video wrapper (phone / short-form) */
.video-wrapper.video-vertical {
  padding-bottom: 177.78%; /* 9:16 */
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background-color: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: var(--space-md);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(26, 26, 24, 0.08);
}

.service-icon {
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
  color: var(--clr-brown);
}

.service-card h3 {
  font-family: var(--ff-heading);
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.service-card p {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
.portfolio {
  background-color: var(--clr-bg-alt);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}

/* Bottom row with fewer items — centre them */
.portfolio-grid-centered {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 640px;
  margin-top: 1.5rem;
}

.portfolio-item {
  border-radius: 10px;
  overflow: hidden;
}

.portfolio-label {
  padding: var(--space-sm) 0 0;
  font-weight: 500;
  font-size: 0.95rem;
  text-align: center;
  color: var(--clr-text-muted);
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.testimonial-card {
  background-color: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: 10px;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-text {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--clr-text);
  margin-bottom: var(--space-sm);
  line-height: 1.8;
}

.testimonial-name {
  display: block;
  font-style: normal;
  color: var(--clr-accent);
}

.testimonial-role {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin-left: 0.25rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background-color: var(--clr-bg-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.form-group {
  margin-bottom: var(--space-sm);
}

.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  color: var(--clr-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--ff-body);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  background-color: var(--clr-white);
  color: var(--clr-text);
  transition: border-color 0.25s var(--ease);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
}

.form-group textarea {
  resize: vertical;
}

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

.contact-direct h3,
.calendly-wrapper h3 {
  font-family: var(--ff-heading);
  font-size: 1.3rem;
  margin-bottom: var(--space-xs);
}

.contact-email {
  font-size: 1.05rem;
  color: var(--clr-accent);
  font-weight: 500;
  border-bottom: 1px solid var(--clr-accent);
  transition: color 0.25s var(--ease);
}

.contact-email:hover {
  color: var(--clr-accent-light);
}

.calendly-placeholder p {
  color: var(--clr-text-muted);
  margin-bottom: var(--space-sm);
  font-size: 0.95rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background-color: var(--clr-accent);
  color: var(--clr-bg);
  padding: var(--space-lg) 0 var(--space-md);
}

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

.footer-logo {
  font-family: var(--ff-heading);
  font-size: 1.4rem;
}

.footer-tagline {
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-socials {
  display: flex;
  gap: var(--space-sm);
}

.social-link {
  color: var(--clr-bg);
  opacity: 0.7;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}

.social-link:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.8rem;
  opacity: 0.6;
  margin-top: var(--space-xs);
}

/* ============================================================
   SCROLL FADE-IN ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* Language fade transition for text swap */
[data-i18n],
[data-i18n-placeholder] {
  transition: opacity 0.25s var(--ease);
}

.lang-fading [data-i18n],
.lang-fading [data-i18n-placeholder] {
  opacity: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-h: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background-color: var(--clr-bg);
    box-shadow: -4px 0 20px rgba(26, 26, 24, 0.1);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    z-index: 999;
  }

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

  .nav-links a {
    font-size: 1.1rem;
  }

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

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

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

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

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

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