/* ====================
   极简摄影作品集 - 简洁主页版
   ==================== */

:root {
  --color-bg: #1c1c1c;
  --color-text: #ffffff;
  --color-text-light: #cccccc;
  --color-text-muted: #888888;
  --font-display: 'Pacifico', cursive;
  --font-body: 'Pacifico', cursive;
  --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ====================
   Metro Background - grid properties set by JS
   ==================== */
.metro-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: grid;
  gap: 0;
  z-index: 0;
  opacity: 0.55;
  overflow: hidden;
}

.metro-tile {
  position: relative;
  overflow: hidden;
  background: #000000;
  will-change: transform;
}

.metro-tile-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  will-change: transform;
}

.metro-tile-front,
.metro-tile-back {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.metro-tile-back {
  transform: rotateY(180deg);
}

.metro-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.metro-tile img.loaded {
  opacity: 1;
}

@keyframes autoFlipYRight {
  0%, 45% { transform: rotateY(0deg); }
  50%, 95% { transform: rotateY(180deg); }
  100% { transform: rotateY(360deg); }
}

@keyframes autoFlipYLeft {
  0%, 45% { transform: rotateY(0deg); }
  50%, 95% { transform: rotateY(-180deg); }
  100% { transform: rotateY(-360deg); }
}

@keyframes autoFlipXDown {
  0%, 45% { transform: rotateX(0deg); }
  50%, 95% { transform: rotateX(180deg); }
  100% { transform: rotateX(360deg); }
}

@keyframes autoFlipXUp {
  0%, 45% { transform: rotateX(0deg); }
  50%, 95% { transform: rotateX(-180deg); }
  100% { transform: rotateX(-360deg); }
}

/* ====================
   Overlay Gradient（减轻变暗）
   ==================== */
.overlay-gradient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  background: 
    radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.12) 45%, rgba(0, 0, 0, 0.25) 100%);
}

/* ====================
   Home Page
   ==================== */
.home {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 0 0 4rem 0;
  z-index: 2;
}

.photo-container {
  position: relative;
  display: inline-block;
}

.photo-wrapper {
  background-color: #333333;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  z-index: 2;
}

.photo-glow {
  position: absolute;
  top: -30px;
  left: -30px;
  right: -30px;
  bottom: -30px;
  z-index: 1;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.4) 0%, transparent 70%);
  pointer-events: none;
}

.hero-photo {
  display: block;
  opacity: 0;
  animation: fadeIn 1s ease forwards;
  animation-delay: 0.3s;
}

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

/* ====================
   About Section
   ==================== */
.about {
  text-align: left;
  margin-top: 0;
  margin-left: max(1.5rem, 8vw);
  opacity: 0;
  animation: fadeIn 1s ease forwards;
  animation-delay: 0.8s;
  position: relative;
  padding: 1.5rem 0;
  border-radius: 8px;
}

.about-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  background: 
    radial-gradient(ellipse at center, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.3) 50%, transparent 70%);
  border-radius: 8px;
  pointer-events: none;
}

.about-name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}

.about-contact {
  justify-content: flex-start;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  position: relative;
  z-index: 1;
}

.contact-font {
  font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, 'Times New Roman', serif;
}

.about-contact a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.about-contact a:hover {
  color: var(--color-text);
}

/* ====================
   Responsive
   ==================== */
@media (max-width: 1024px) {
  .metro-background { gap: 0; }
}

@media (max-width: 768px) {
  .hero-photo { height: 45vh; max-width: 95vw; }
  .about-name { font-size: 1.5rem; }
  .metro-background { gap: 0; }
}

@media (max-width: 480px) {
  .hero-photo { height: 35vh; }
  .about-contact { flex-direction: column; gap: 0.5rem; }
  .metro-background { gap: 0; }
}