@charset "UTF-8";

/* ==========================================================================
   Design Variables & Root Setup
   ========================================================================== */
:root {
  --bbs-accent: #ff9ecd;
  --bbs-accent-hover: #ff7ebb;
  --bbs-secondary: #a29bfe;
  --bbs-bg-glass: rgba(255, 255, 255, 0.75);
  --bbs-border-glass: rgba(255, 255, 255, 0.5);
  --bbs-card-shadow: 0 8px 32px rgba(31, 38, 135, 0.07);
  --bbs-text-main: #2d3436;
  --bbs-text-sub: #888888;
  --bbs-radius-lg: 24px;
  --bbs-radius-md: 15px;
  --bbs-radius-sm: 10px;
}

/* Base Transition */
body.bbs-page {
  transition: background 0.5s ease;
}

/* ==========================================================================
   User Header & User Registration Form
   ========================================================================== */
.user-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bbs-bg-glass);
  padding: 14px 22px;
  border-radius: 20px;
  margin-bottom: 25px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--bbs-border-glass);
  box-shadow: var(--bbs-card-shadow);
}

.logout-link {
  text-decoration: none;
  font-size: 0.85rem;
  color: var(--bbs-text-sub);
  border: 1px solid #e0e0e0;
  padding: 6px 14px;
  border-radius: var(--bbs-radius-sm);
  background: rgba(255, 255, 255, 0.6);
  transition: all 0.2s ease;
}

.logout-link:hover {
  background: #ffffff;
  color: #ff5252;
  border-color: #ff5252;
}

/* ==========================================================================
   Post Form Container
   ========================================================================== */
.form-container {
  background: var(--bbs-bg-glass);
  padding: 24px;
  border-radius: var(--bbs-radius-lg);
  border: 1px solid var(--bbs-border-glass);
  box-shadow: var(--bbs-card-shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Textarea Styling */
textarea#comment {
  width: 100%;
  min-height: 110px;
  resize: none;
  border-radius: var(--bbs-radius-md);
  padding: 16px;
  border: 2px solid transparent;
  background: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--bbs-text-main);
  box-sizing: border-box;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

textarea#comment:focus {
  background: #ffffff;
  border-color: var(--bbs-accent);
  box-shadow: 0 0 0 4px rgba(255, 158, 205, 0.25);
  outline: none;
}

/* Emoji Bar */
.emoji-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.emoji-btn {
  background: #ffffff;
  border: 1px solid #eee;
  border-radius: var(--bbs-radius-sm);
  padding: 6px 12px;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.emoji-btn:hover {
  transform: translateY(-2px) scale(1.1);
  background: var(--bbs-accent);
  border-color: var(--bbs-accent);
}

/* Character Counter */
.char-counter {
  text-align: right;
  font-size: 0.75rem;
  color: var(--bbs-text-sub);
  margin-top: 4px;
  margin-bottom: 8px;
}

/* ==========================================================================
   File Upload & Drag/Drop Area
   ========================================================================== */
.drop-zone {
  border: 2px dashed #dcdde1;
  border-radius: var(--bbs-radius-md);
  padding: 22px;
  text-align: center;
  color: var(--bbs-text-sub);
  transition: all 0.3s ease;
  margin: 12px 0;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  user-select: none;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--bbs-accent);
  background: rgba(255, 158, 205, 0.12);
  color: var(--bbs-accent);
}

#image-preview-container {
  display: none;
  margin: 15px 0;
  position: relative;
  width: fit-content;
}

#image-preview {
  max-width: 220px;
  max-height: 220px;
  border-radius: var(--bbs-radius-md);
  border: 3px solid #ffffff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  object-fit: cover;
}

/* ==========================================================================
   Timeline & Posts
   ========================================================================== */
.posts-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.post-item {
  background: #ffffff;
  border-radius: 20px;
  padding: 20px 24px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.03);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.time-tag {
  font-size: 0.75rem;
  color: var(--bbs-text-sub);
  background: #f1f2f6;
  padding: 3px 10px;
  border-radius: 12px;
  display: inline-block;
  margin-top: 2px;
}

.post-body {
  line-height: 1.75;
  color: var(--bbs-text-main);
  font-size: 1.05rem;
  word-break: break-word;
}

.post-item img {
  border-radius: 14px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   Popup Modal & Overlay
   ========================================================================== */
.popup {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(0, 0, 0, 0.85);
  transition: opacity 0.3s ease;
}

.loading-overlay {
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* ==========================================================================
   Responsive Improvements
   ========================================================================== */
@media (max-width: 600px) {
  .form-container {
    padding: 16px;
  }

  .user-header {
    padding: 10px 16px;
  }

  .post-item {
    padding: 16px;
  }
}