/* ============================================
   PANPRUKSA DESIGN SYSTEM
   Based on Listone Giordano luxury aesthetic
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Source+Sans+3:ital,wght@0,200;0,300;0,400;0,500;0,600;1,300;1,400&display=swap');

/* --- CSS Variables --- */
:root {
  --font-brand: 'Cormorant Garamond', serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  --black: #000000;
  --white: #FFFFFF;
  --warm-gray: #CBCBCB;
  --light-gray: #E8E8E8;
  --bg-gray: #F0EFED;
  --copper: #B87333;
  --dark-bg: #1A1A1A;
  --text-muted: #666666;
  --transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--black);
  background: var(--bg-gray);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.15;
}

h1 { font-size: clamp(3rem, 7vw, 6.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 4.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 3rem); }
h4 { font-size: clamp(1.25rem, 2vw, 2rem); }

p {
  font-size: clamp(1rem, 1.2vw, 1.25rem);
  line-height: 1.7;
  font-weight: 300;
}

.brand-font { font-family: var(--font-brand); }
.text-uppercase { text-transform: uppercase; letter-spacing: 0.15em; }
.text-muted { color: var(--text-muted); }
.text-white { color: var(--white); }
.text-center { text-align: center; }
.label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 400;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
}

.container-narrow {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
}

section {
  padding: clamp(4rem, 8vw, 8rem) 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
}

/* --- Header / Nav --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem clamp(1.5rem, 4vw, 4rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(240, 239, 237, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}

.logo {
  font-family: var(--font-brand);
  font-size: clamp(1.5rem, 2vw, 1.75rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--black);
  transition: var(--transition);
}

.logo span { font-size: 0.6em; vertical-align: super; }

.header.hero-visible .logo { color: var(--white); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 28px;
  height: 1.5px;
  background: var(--black);
  transition: var(--transition);
}

.header.hero-visible .nav-toggle span { background: var(--white); }
.nav-open .nav-toggle span { background: var(--black); }
.nav-open .nav-toggle span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Full-screen Nav Overlay --- */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-gray), var(--warm-gray));
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

.nav-open .nav-overlay {
  opacity: 1;
  pointer-events: all;
}

.nav-menu {
  text-align: left;
}

.nav-menu a {
  display: block;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 300;
  padding: 0.5rem 0;
  color: var(--black);
  transition: var(--transition);
  position: relative;
}

.nav-menu a:hover {
  padding-left: 1rem;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0.4rem;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--black);
  transition: width 0.4s ease;
}

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

.nav-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(0,0,0,0.1);
}

.nav-footer a {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-right: 2rem;
  color: var(--text-muted);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(3rem, 6vw, 6rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.1) 0%,
    rgba(0,0,0,0.15) 50%,
    rgba(0,0,0,0.5) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--white);
  padding: 0 clamp(1.5rem, 4vw, 4rem);
  max-width: 800px;
}

.hero-content .label {
  margin-bottom: 1rem;
  opacity: 0.8;
}

.hero-content h1 {
  margin-bottom: 1.5rem;
  line-height: 1.05;
}

.hero-content p {
  font-size: clamp(1.1rem, 1.3vw, 1.35rem);
  opacity: 0.9;
  max-width: 550px;
  margin-bottom: 2rem;
}

/* Copper accent line */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--copper), transparent);
}

/* --- Page Hero (smaller) --- */
.page-hero {
  position: relative;
  height: 50vh;
  min-height: 350px;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(2rem, 4vw, 4rem);
  overflow: hidden;
  background: linear-gradient(135deg, #2a2a2a 0%, #4a4a4a 100%);
}

.page-hero .hero-bg::after {
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.2) 0%,
    rgba(0,0,0,0.5) 100%
  );
}

.page-hero h1 { color: var(--white); }
.page-hero .label { color: rgba(255,255,255,0.7); }

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--copper), transparent);
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  border: 1px solid var(--black);
  background: transparent;
  color: var(--black);
  cursor: pointer;
  transition: var(--transition);
}

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

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

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

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

.btn-solid:hover {
  background: transparent;
  color: var(--black);
}

.link-arrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 400;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.link-arrow::after {
  content: '\2192';
  transition: transform 0.3s ease;
}

.link-arrow:hover::after { transform: translateX(4px); }

/* --- Scroll Indicator --- */
.scroll-indicator {
  position: absolute;
  right: 2rem;
  bottom: 2rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
}

.scroll-indicator span {
  writing-mode: vertical-rl;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  opacity: 0.7;
}

.scroll-indicator svg {
  width: 12px;
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* --- Intro / About Section --- */
.intro-section {
  padding: clamp(5rem, 10vw, 10rem) 0;
}

.intro-section h2 {
  margin-bottom: 2rem;
}

.intro-section p {
  color: var(--text-muted);
  max-width: 650px;
}

.intro-section .lead {
  font-size: clamp(1.2rem, 1.5vw, 1.5rem);
  color: var(--black);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* --- Projects Carousel / Grid --- */
.projects-section {
  background: var(--white);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: clamp(2rem, 4vw, 4rem);
}

.section-header h2 { margin-bottom: 0; }

.project-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/2;
  cursor: pointer;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover img { transform: scale(1.05); }

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1rem, 2vw, 2rem);
  color: var(--white);
}

.project-card-overlay h4 {
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  margin-bottom: 0.25rem;
}

.project-card-overlay .label {
  font-size: 0.65rem;
  opacity: 0.8;
}

/* --- Collections Preview --- */
.collections-section {
  background: var(--bg-gray);
}

.collection-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.collection-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.collection-card:hover img { transform: scale(1.03); }

.collection-card-content {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-align: center;
  padding: 2rem;
  transition: background 0.4s ease;
}

.collection-card:hover .collection-card-content {
  background: rgba(0,0,0,0.45);
}

.collection-card-content h3 {
  font-size: clamp(1.5rem, 2.5vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.collection-card-content p {
  font-size: 0.9rem;
  opacity: 0.85;
  max-width: 350px;
}

/* --- Brand Values --- */
.values-section {
  background: var(--dark-bg);
  color: var(--white);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3rem;
}

.value-item h4 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.value-item p {
  font-size: 0.95rem;
  opacity: 0.7;
  line-height: 1.6;
}

.value-item::before {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--copper);
  margin-bottom: 1.5rem;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 3rem;
  margin-top: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--warm-gray);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -3rem;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--copper);
  border: 2px solid var(--bg-gray);
}

.timeline-item .year {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--copper);
  margin-bottom: 0.5rem;
}

.timeline-item h4 { margin-bottom: 0.5rem; }
.timeline-item p { color: var(--text-muted); font-size: 0.95rem; }

/* --- Contact Form --- */
.contact-section {
  background: var(--white);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  margin-bottom: 0;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
  font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  border: none;
  border-bottom: 1px solid var(--warm-gray);
  background: transparent;
  color: var(--black);
  transition: border-color 0.3s ease;
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-bottom-color: var(--black);
}

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

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  padding-right: 1.5rem;
}

.form-status {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  display: none;
}

.form-status.success { color: #2d7d46; display: block; }
.form-status.error { color: #c0392b; display: block; }

/* --- Contact Info --- */
.contact-info {
  padding-left: clamp(2rem, 4vw, 4rem);
}

.contact-info-item {
  margin-bottom: 2.5rem;
}

.contact-info-item .label {
  margin-bottom: 0.75rem;
  color: var(--text-muted);
}

.contact-info-item p {
  font-size: 0.95rem;
  line-height: 1.8;
}

.contact-info-item a {
  color: var(--black);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.contact-info-item a:hover { border-bottom-color: var(--black); }

/* --- Map --- */
.map-section {
  height: 400px;
  background: var(--light-gray);
  position: relative;
}

.map-section iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(100%) contrast(1.1);
  transition: filter 0.5s ease;
}

.map-section:hover iframe { filter: grayscale(0%); }

/* --- Footer --- */
.footer {
  background: var(--dark-bg);
  color: var(--white);
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 1rem;
  display: inline-block;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.6;
  max-width: 300px;
  line-height: 1.7;
}

.footer h5 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 1.25rem;
  opacity: 0.5;
}

.footer a {
  display: block;
  font-size: 0.9rem;
  padding: 0.3rem 0;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.footer a:hover { opacity: 1; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  opacity: 0.4;
}

/* --- Copper Divider --- */
.copper-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--copper), transparent 70%);
}

/* --- Animations --- */
.fade-up {
  opacity: 1;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .contact-info { padding-left: 0; padding-top: 3rem; }
}

@media (max-width: 768px) {
  .grid-3 { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
  .scroll-indicator { display: none; }
}