/* ===== QuickCopy Pro: Unified Robust Design System v5.0 ===== */
:root {
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.4);
  --secondary: #a855f7;
  --accent: #f43f5e;
  --success: #10b981;
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  --glass: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-heavy: rgba(15, 23, 42, 0.9);
  --text: #f8fafc;
  --text-dim: #94a3b8;
  --white: #ffffff;
  --hover-bg: rgba(255, 255, 255, 0.08);
}

body:not(.dark-mode) {
  --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --glass: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-heavy: rgba(255, 255, 255, 0.95);
  --text: #1e293b;
  --text-dim: #64748b;
  --hover-bg: rgba(99, 102, 241, 0.08);
}

/* ===== Resets & Core Scaling ===== */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', -apple-system, sans-serif; }
html { font-size: 16px; scroll-behavior: smooth; }
body { background: var(--bg-gradient); background-attachment: fixed; color: var(--text); min-height: 100vh; padding: 20px; transition: background 0.4s; overflow-x: hidden; line-height: 1.5; }
#app { width: 100%; max-width: 1200px; margin: 0 auto; animation: fadeIn 0.4s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Component: Glass Card ===== */
.glass-card { background: var(--glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: 20px; padding: 24px; box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2); }

/* ===== Dashboard: Header ===== */
.header { display: flex; align-items: center; justify-content: space-between; gap: 20px; background: var(--glass-heavy); padding: 12px 24px; border-radius: 18px; border: 1px solid var(--glass-border); backdrop-filter: blur(25px); position: sticky; top: 15px; z-index: 1000; margin-bottom: 32px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.user-greeting { font-weight: 800; font-size: 1.1rem; white-space: nowrap; flex-shrink: 0; }
.header-search-container { position: relative; flex: 1; max-width: 500px; }
.header-search-container svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 18px; opacity: 0.5; pointer-events: none; }
#search-input { width: 100%; background: rgba(238, 242, 247, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding: 12px 16px 12px 44px; border-radius: 14px; border: 1px solid rgba(0, 0, 0, 0.1); color: #1e293b; font-size: 0.95rem; transition: 0.3s; }
#search-input:focus { border-color: var(--primary); outline: none; background: rgba(238, 242, 247, 1); box-shadow: 0 0 0 4px var(--primary-glow); }

/* ===== Dashboard: Add Clip Bar ===== */
.main-input-card { margin-bottom: 32px; padding: 12px 16px !important; }
#input-area { display: flex; gap: 8px; align-items: flex-end; width: 100%; min-height: 52px; }
.input-hint { transition: opacity 0.3s ease, transform 0.3s ease; }
#new-snippet { flex: 1; min-height: 52px; height: 52px; max-height: 400px; background: rgba(238, 242, 247, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid rgba(0, 0, 0, 0.1); padding: 13px 20px; border-radius: 16px; color: #1e293b; font-size: 1rem; outline: none; transition: border-color 0.2s, box-shadow 0.2s; font-family: inherit; line-height: 24px; resize: none; overflow-y: hidden; }
#new-snippet:focus { background: rgba(238, 242, 247, 1); border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-glow); }
#add-btn { height: 52px; padding: 0 28px; font-weight: 700; white-space: nowrap; flex-shrink: 0; cursor: pointer; background: var(--primary); color: white; border: none; border-radius: 14px; transition: 0.2s; }

/* ===== Dropdown Menu ===== */
.profile-dropdown-container { position: relative; }
.profile-btn { background: var(--glass); border: 1px solid var(--glass-border); width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text); transition: 0.2s; }
.dropdown-menu { position: absolute; top: 55px; right: 0; background: var(--glass-heavy); backdrop-filter: blur(30px); border: 1px solid var(--glass-border); border-radius: 16px; width: 220px; z-index: 2000; padding: 8px; box-shadow: 0 15px 40px rgba(0,0,0,0.4); display: none; }
.dropdown-menu.show { display: block; }
.dropdown-item { display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px 16px; border-radius: 12px; background: none; border: none; color: var(--text); font-weight: 600; cursor: pointer; text-align: left; font-size: 0.95rem; }
.dropdown-item:hover { background: var(--hover-bg); }

/* ===== Snippet Masonry Grid ===== */
#snippets-list { column-count: 3; column-gap: 24px; width: 100%; }
@media (max-width: 1100px) { #snippets-list { column-count: 2; } }
@media (max-width: 700px) { #snippets-list { column-count: 1; } }

.snippet-card { break-inside: avoid; display: inline-block; width: 100%; margin-bottom: 24px; background: var(--glass); border: 1px solid var(--glass-border); border-radius: 20px; padding: 18px; transition: 0.3s; cursor: pointer; position: relative; }
.snippet-card:hover { transform: translateY(-5px); border-color: var(--primary); box-shadow: 0 12px 32px rgba(0,0,0,0.2); }
.snippet-card.pinned { border-top: 5px solid #f59e0b; }
.snippet-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.snippet-content { font-size: 1rem; line-height: 1.6; margin-bottom: 12px; word-break: break-word; overflow-wrap: anywhere; white-space: pre-wrap; color: var(--text); font-family: 'Inter', sans-serif; }
.code-block { background: rgba(0,0,0,0.2); padding: 12px; border-radius: 10px; font-family: 'Fira Code', 'Courier New', monospace; font-size: 0.9rem; border: 1px solid var(--glass-border); overflow-x: auto; margin-top: 8px; }

/* ===== Landing & Auth Section (RE-POLISHED) ===== */
.landing-layout { display: flex; align-items: center; justify-content: center; min-height: 85vh; gap: 60px; flex-wrap: wrap; padding: 40px 0; }
.landing-hero { flex: 1; min-width: 320px; max-width: 550px; }
.landing-hero h1 { font-size: clamp(2.5rem, 6vw, 4rem); line-height: 1.1; letter-spacing: -2px; margin-bottom: 24px; background: linear-gradient(to right, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.landing-hero p { font-size: 1.2rem; color: var(--text-dim); line-height: 1.6; margin-bottom: 40px; }

.landing-features { display: flex; flex-direction: column; gap: 24px; }
.landing-feature { display: flex; align-items: flex-start; gap: 18px; color: var(--text); }
.landing-feature .icon-box { background: var(--glass); padding: 12px; border-radius: 14px; border: 1px solid var(--glass-border); display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; flex-shrink: 0; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.feat-title { font-weight: 800; font-size: 1.1rem; margin-bottom: 4px; }
.feat-desc { font-size: 0.9rem; color: var(--text-dim); font-weight: 500; }

.landing-auth { flex: 1; min-width: 320px; max-width: 420px; width: 100%; }
.auth-container { width: 100%; text-align: center; }
.auth-container h2 { font-size: 2rem; font-weight: 900; margin-bottom: 24px; }
.auth-container input { width: 100%; padding: 16px 20px; background: rgba(238, 242, 247, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid rgba(0, 0, 0, 0.1); border-radius: 16px; color: #1e293b; font-size: 1rem; margin-bottom: 12px; transition: 0.3s; }
.auth-container input:focus { border-color: var(--primary); background: rgba(238, 242, 247, 1); outline: none; box-shadow: 0 0 0 4px var(--primary-glow); }

.auth-container .btn { width: 100%; margin-bottom: 12px; }
.btn-link { background: none; border: none; color: var(--primary); text-decoration: none; cursor: pointer; font-size: 0.9rem; padding: 4px; font-weight: 500; }
.btn-link:hover { color: var(--secondary); text-decoration: underline; }
.auth-error-msg { font-size: 0.85rem; color: var(--accent); margin-top: 10px; min-height: 20px; font-style: italic; }

/* ===== Component: Toasts ===== */
.toast-container { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 12px; z-index: 9999; pointer-events: none; }
.toast { background: var(--glass-heavy); backdrop-filter: blur(15px); border: 1px solid var(--glass-border); color: var(--text); padding: 12px 20px; border-radius: 14px; box-shadow: 0 8px 25px rgba(0,0,0,0.3); display: flex; align-items: center; gap: 10px; animation: slideIn 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28); opacity: 1; transition: opacity 0.3s ease; font-weight: 600; font-size: 0.95rem; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ===== Component: Modal ===== */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; z-index: 10000; animation: fadeIn 0.2s ease-out; }
.modal-content { background: var(--glass-heavy); border: 1px solid var(--glass-border); padding: 32px; border-radius: 24px; width: 90%; max-width: 450px; box-shadow: 0 20px 50px rgba(0,0,0,0.5); }
.modal-content h2 { margin-bottom: 16px; font-weight: 800; }
.modal-content input { width: 100%; background: rgba(238, 242, 247, 0.9); border: 1px solid rgba(0,0,0,0.1); padding: 14px 18px; border-radius: 12px; color: #1e293b; font-size: 1rem; margin-bottom: 20px; outline: none; }
.modal-content input:focus { border-color: var(--primary); background: rgba(238, 242, 247, 1); box-shadow: 0 0 0 4px var(--primary-glow); }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; }

/* ===== Unified Auxiliary Page System ===== */
.content-container { max-width: 900px; margin: 0 auto; animation: fadeIn 0.4s ease-out; }
.aux-header { display: flex; flex-direction: column; align-items: stretch; gap: 12px; padding: 12px 16px; position: sticky; top: 10px; z-index: 1000; background: var(--glass-heavy); border: 1px solid var(--glass-border); border-radius: 18px; backdrop-filter: blur(25px); margin-bottom: 32px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.aux-header-top { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.aux-header-title { font-weight: 900; font-size: 1.5rem; margin-top: 4px; }
.brand-label { opacity: 0.5; font-size: 0.7rem; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }

.app-footer { margin-top: 60px; padding: 40px 20px; text-align: center; border-top: 1px solid var(--glass-border); width: 100%; }
.footer-cta { display: flex; flex-direction: column; align-items: center; gap: 24px; margin-bottom: 32px; }
.footer-btns { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: center; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); text-decoration: none; font-weight: 600; font-size: 0.9rem; transition: 0.2s; }
.footer-links a:hover { color: var(--primary); }
.app-footer p { font-size: 0.8rem; color: var(--text-dim); opacity: 0.7; }

/* ===== Settings & Secondary Scaling ===== */
.profile-layout { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
.profile-hero { text-align: center; padding: 40px 20px; }
.profile-avatar { width: 80px; height: 80px; margin: 0 auto 16px; background: linear-gradient(135deg, var(--primary), var(--secondary)); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 25px var(--primary-glow); }
.profile-avatar svg { width: 36px !important; height: 36px !important; color: white; }
.grid-layout-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.stat-item { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--glass-border); font-size: 0.95rem; }

/* ===== Buttons & Badges ===== */
.btn { padding: 12px 24px; border-radius: 12px; font-weight: 700; cursor: pointer; border: none; transition: 0.2s; display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 1rem; text-decoration: none !important; }
.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 15px var(--primary-glow); }
.btn-outline { background: transparent; border: 1px solid var(--glass-border); color: var(--text); }
.btn-outline.active { background: var(--primary); color: white; border-color: var(--primary); }
.google-btn { background: var(--white); color: #1f2937; margin-top: 12px; border: 1px solid #e5e7eb; }
.icon-btn { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--glass-border); background: var(--glass); cursor: pointer; display: flex; align-items: center; justify-content: center; }
.icon-btn svg { width: 18px !important; height: 18px !important; }
.badge { font-size: 0.7rem; font-weight: 800; padding: 4px 10px; border-radius: 8px; text-transform: uppercase; margin-bottom: 12px; display: inline-block; }
.badge-code { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.badge-link { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-text { background: rgba(148, 163, 184, 0.15); color: #94a3b8; }

/* ===== Component: Donation ===== */
.coffee-btn { background: #FFDD00; color: #000000; border: none; padding: 10px 20px; border-radius: 12px; font-weight: 800; font-size: 0.9rem; display: flex; align-items: center; gap: 10px; cursor: pointer; transition: 0.3s; text-decoration: none; box-shadow: 0 4px 15px rgba(255, 221, 0, 0.3); width: fit-content; }
.coffee-btn:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 8px 25px rgba(255, 221, 0, 0.4); background: #ffeb3b; }
.coffee-icon { font-size: 1.2rem; }

/* ===== Snippet Card Actions ===== */
.snippet-footer { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--glass-border); }
.actions-group { display: flex !important; flex-direction: row !important; gap: 8px; flex-wrap: wrap; align-items: center; justify-content: flex-end; }
.icon-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* ===== Dashboard: Unified Toolbar Row ===== */
.toolbar-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 12px 16px !important; margin-bottom: 24px; width: 100%; }
.toolbar-tabs { display: flex; gap: 8px; flex-shrink: 0; }
.toolbar-tabs .btn { padding: 8px 16px; font-size: 0.85rem; width: auto; height: 40px; display: flex; align-items: center; }

#input-area { display: flex; gap: 12px; align-items: center; flex: 1; min-width: 0; }
#new-snippet { flex: 1; min-height: 48px; height: 48px; max-height: 350px; background: rgba(238, 242, 247, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid rgba(0, 0, 0, 0.1); padding: 12px 16px; border-radius: 14px; color: #1e293b; font-size: 0.95rem; outline: none; transition: border-color 0.2s, box-shadow 0.2s; font-family: inherit; line-height: 24px; resize: none; overflow-y: hidden; width: 100%; display: flex; align-items: center; }
#add-btn { height: 48px; padding: 0 24px; font-weight: 700; font-size: 0.9rem; border-radius: 12px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }

/* ===== Utils & Mobile ===== */
@media (max-width: 800px) {
  .toolbar-row { flex-direction: column; align-items: stretch; gap: 16px; }
  .toolbar-tabs { justify-content: space-between; order: 1; }
  .toolbar-tabs .btn { flex: 1; justify-content: center; }
  
  #input-area { flex-direction: column; align-items: stretch; gap: 12px; order: 2; width: 100%; }
  #new-snippet { width: 100%; border-radius: 14px; }
  #add-btn { width: 100%; border-radius: 14px; height: 52px; order: 3; }
  
  .input-hint { display: none !important; }
}

@media (max-width: 600px) {
  body { padding: 12px; }
  
  /* Robust 2-Row Header Layout */
  .header { 
    display: grid !important; 
    grid-template-areas: 
      "greeting profile"
      "search search" !important;
    grid-template-columns: 1fr auto !important;
    gap: 12px !important;
    padding: 16px !important;
    align-items: center !important;
  }

  .user-greeting { 
    grid-area: greeting !important; 
    font-size: 1rem !important; 
    display: block !important; 
  }
  
  .profile-dropdown-container { 
    grid-area: profile !important; 
    display: block !important; 
  }
  
  .header-search-container { 
    grid-area: search !important; 
    width: 100% !important; 
    display: block !important; 
    margin: 0 !important;
  }
  
  .landing-layout { gap: 40px; padding: 20px 0; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
}

.spinner { width: 40px !important; height: 40px !important; border: 3px solid var(--glass-border); border-top: 3px solid var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }