/* =========================================================
   Components - buttons, cards, forms, gallery, CTAs
   ========================================================= */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  min-height: 2.75rem;
  text-align: center;
}

.btn:hover {
  text-decoration: none;
}

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

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

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

.btn--secondary:hover {
  background: rgba(30, 58, 95, 0.06);
  color: var(--color-primary-deep);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ivory);
  border-color: rgba(250, 247, 242, 0.45);
}

.btn--ghost:hover {
  background: rgba(250, 247, 242, 0.1);
  color: var(--color-white);
}

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

.btn--gold:hover {
  background: var(--color-gold-soft);
  color: var(--color-primary-deep);
}

.btn--full {
  width: 100%;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 480px) {
  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-group .btn {
    width: 100%;
  }
}

/* Cards */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  height: 100%;
  transition: box-shadow var(--transition), border-color var(--transition);
}

@media (max-width: 480px) {
  .card {
    padding: var(--space-4);
  }

  .card--contribute,
  .founder-card,
  .phase {
    padding: var(--space-5) var(--space-4);
  }
}

.card:hover {
  box-shadow: var(--shadow-soft);
  border-color: var(--color-border-strong);
}

.card--facility {
  position: relative;
  overflow: hidden;
  padding-top: var(--space-6);
}

.card--facility::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-alt), var(--color-accent));
}

.card__number {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  color: var(--color-gold-muted);
  margin-bottom: var(--space-3);
  line-height: 1;
}

.card__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}

.card__text {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin: 0;
}

.card--contribute {
  text-align: center;
  padding: var(--space-6) var(--space-5);
  border: 1px solid var(--color-border-strong);
}

.card--contribute .amount {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  color: var(--color-primary);
  margin: var(--space-3) 0;
  font-weight: 600;
}

.card--contribute .unit {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stat-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
}

.stat-item__label {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold-muted);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.stat-item__value {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  color: var(--color-primary-deep);
  line-height: var(--lh-snug);
}

html[lang="si"] .stat-item__value {
  font-family: var(--font-sinhala);
  font-size: var(--fs-lg);
}

/* Phase timeline */
.timeline {
  display: grid;
  gap: var(--space-5);
  position: relative;
}

@media (min-width: 768px) {
  .timeline {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
}

.phase {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
}

.phase__label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-white);
  background: var(--color-primary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.phase ul {
  margin: var(--space-4) 0 0;
  padding-left: 1.1rem;
  color: var(--color-text-muted);
}

.phase li {
  margin-bottom: var(--space-2);
}

/* Founder cards */
.founder-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
}

.founder-card__photo {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-ivory-warm);
  border: 2px solid var(--color-gold-soft);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: var(--fs-sm);
}

.founder-card__name {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}

.founder-card__title {
  font-size: var(--fs-sm);
  color: var(--color-gold-muted);
  margin-bottom: var(--space-3);
}

/* Event cards */
.event-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.event-card__image {
  aspect-ratio: 16 / 10;
  background: var(--color-ivory-warm);
  object-fit: cover;
  width: 100%;
}

.event-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-2);
}

.event-card__meta {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
}

/* Gallery */
.gallery-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery-item {
  display: block;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-white);
  cursor: pointer;
  transition: box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
}

.gallery-item figure {
  margin: 0;
}

.gallery-item:hover {
  box-shadow: var(--shadow-lift);
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #f7f1e8;
  padding: var(--space-2);
}

/* Cleaner look for architectural drawings */
.gallery-item img[src*="architecture/"] {
  background: #ffffff;
  object-fit: contain;
  padding: var(--space-3);
}

.gallery-item figcaption {
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(30, 58, 95, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: min(96vw, 1100px);
  max-height: min(82svh, 88vh);
  object-fit: contain;
  background: #fff;
  border-radius: var(--radius-sm);
}

.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: #fff;
  font-size: 1.75rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

/* Video */
.video-frame {
  aspect-ratio: 16 / 9;
  background: var(--color-primary-deep);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(250, 247, 242, 0.75);
  border: 1px solid var(--color-border);
  overflow: hidden;
  position: relative;
}

.video-frame iframe,
.video-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-frame video {
  object-fit: contain;
  background: var(--color-primary-darkest);
}

.video-frame--empty {
  background: var(--bg-primary);
}

/* Bank box */
.bank-box {
  background: var(--color-white);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.bank-row {
  display: grid;
  gap: 0.25rem;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.bank-row:last-child {
  border-bottom: none;
}

.bank-row dt {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  font-weight: 600;
}

.bank-row dd {
  margin: 0;
  font-size: var(--fs-md);
  color: var(--color-primary-deep);
  font-weight: 600;
  word-break: break-word;
}

/* Forms */
.form {
  display: grid;
  gap: var(--space-4);
}

.form-field label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-primary-deep);
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  min-height: 2.75rem;
  font-size: 1rem;
}

.form-field textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-message {
  font-size: var(--fs-sm);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  display: none;
}

.form-message.is-visible {
  display: block;
}

.form-message--ok {
  background: rgba(46, 125, 50, 0.1);
  color: #1b5e20;
}

.form-message--err {
  background: rgba(30, 58, 95, 0.08);
  color: var(--color-primary);
}

/* Contact chips */
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 480px) {
  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-chip {
    justify-content: center;
    min-height: 2.75rem;
  }
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-primary-deep);
  font-weight: 600;
  font-size: var(--fs-sm);
}

.contact-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.contact-chip--whatsapp {
  background: #f0faf3;
  border-color: #b7dfc4;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* =========================================================
   Page loading screen
   ========================================================= */

body.is-loading {
  overflow: hidden;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(233, 161, 50, 0.14), transparent 55%),
    linear-gradient(165deg, var(--color-primary-mid) 0%, var(--color-primary-deep) 48%, var(--color-primary-darkest) 100%);
  color: var(--color-ivory);
  transition: opacity 0.65s ease, visibility 0.65s ease;
}

.page-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem;
  max-width: 22rem;
}

.page-loader__glow {
  position: absolute;
  width: 11rem;
  height: 11rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 183, 77, 0.22), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -62%);
  animation: loader-glow 2.4s ease-in-out infinite;
  pointer-events: none;
}

.page-loader__logo {
  position: relative;
  width: 4.75rem;
  height: 4.75rem;
  object-fit: contain;
  margin-bottom: 1.15rem;
  opacity: 0;
  transform: scale(0.88);
  animation: loader-logo-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.1s forwards;
}

.page-loader__brand {
  position: relative;
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4vw, 1.85rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-ivory);
  opacity: 0;
  transform: translateY(0.6rem);
  animation: loader-fade-up 0.75s ease 0.28s forwards;
}

.page-loader__line {
  position: relative;
  width: 5.5rem;
  height: 1px;
  margin-bottom: 0.85rem;
  background: rgba(240, 183, 77, 0.2);
  overflow: hidden;
}

.page-loader__line span {
  display: block;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--color-gold-soft), transparent);
  animation: loader-line 1.35s ease-in-out infinite;
}

.page-loader__sub {
  position: relative;
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(240, 183, 77, 0.85);
  font-weight: 600;
  opacity: 0;
  transform: translateY(0.5rem);
  animation: loader-fade-up 0.75s ease 0.42s forwards;
}

@keyframes loader-logo-in {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes loader-fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loader-line {
  0% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(280%);
  }
}

@keyframes loader-glow {
  0%,
  100% {
    opacity: 0.55;
    transform: translate(-50%, -62%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -62%) scale(1.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-loader__glow,
  .page-loader__logo,
  .page-loader__brand,
  .page-loader__sub,
  .page-loader__line span {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .page-loader {
    transition-duration: 0.2s;
  }
}

@media (max-width: 480px) {
  .page-loader__logo {
    width: 4rem;
    height: 4rem;
  }

  .page-loader__brand {
    font-size: 1.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* =========================================================
   Page loading screen
   ========================================================= */

body.is-loading {
  overflow: hidden;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(233, 161, 50, 0.14), transparent 55%),
    linear-gradient(165deg, var(--color-primary-mid) 0%, var(--color-primary-deep) 48%, var(--color-primary-darkest) 100%);
  color: var(--color-ivory);
  transition: opacity 0.65s ease, visibility 0.65s ease;
}

.page-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem;
  max-width: 22rem;
}

.page-loader__glow {
  position: absolute;
  width: 11rem;
  height: 11rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 183, 77, 0.22), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -62%);
  animation: loader-glow 2.4s ease-in-out infinite;
  pointer-events: none;
}

.page-loader__logo {
  position: relative;
  width: 4.75rem;
  height: 4.75rem;
  object-fit: contain;
  margin-bottom: 1.15rem;
  opacity: 0;
  transform: scale(0.88);
  animation: loader-logo-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.1s forwards;
}

.page-loader__brand {
  position: relative;
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4vw, 1.85rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-ivory);
  opacity: 0;
  transform: translateY(0.6rem);
  animation: loader-fade-up 0.75s ease 0.28s forwards;
}

.page-loader__line {
  position: relative;
  width: 5.5rem;
  height: 1px;
  margin-bottom: 0.85rem;
  background: rgba(240, 183, 77, 0.2);
  overflow: hidden;
}

.page-loader__line span {
  display: block;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--color-gold-soft), transparent);
  animation: loader-line 1.35s ease-in-out infinite;
}

.page-loader__sub {
  position: relative;
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(240, 183, 77, 0.85);
  font-weight: 600;
  opacity: 0;
  transform: translateY(0.5rem);
  animation: loader-fade-up 0.75s ease 0.42s forwards;
}

@keyframes loader-logo-in {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes loader-fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loader-line {
  0% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(280%);
  }
}

@keyframes loader-glow {
  0%,
  100% {
    opacity: 0.55;
    transform: translate(-50%, -62%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -62%) scale(1.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-loader__glow,
  .page-loader__logo,
  .page-loader__brand,
  .page-loader__sub,
  .page-loader__line span {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .page-loader {
    transition-duration: 0.2s;
  }
}

@media (max-width: 480px) {
  .page-loader__logo {
    width: 4rem;
    height: 4rem;
  }

  .page-loader__brand {
    font-size: 1.35rem;
  }
}