/* =========================================================
   Kelas VII Bilal bin Rabbah — Design System "Zamrud Fajar"
   (Emerald & Dawn — terinspirasi sosok Bilal bin Rabbah,
   muadzin pertama yang menyerukan adzan saat fajar menyingsing)
   ========================================================= */

:root{
  --primary: #0E6B52;
  --primary-dark: #0A4F3D;
  --primary-tint: #E5F2EC;
  --secondary: #A9791E;
  --secondary-dark: #7C5913;
  --secondary-tint: #F6EDD9;
  --tertiary: #D97A2C;
  --tertiary-tint: #FBEADC;
  --deadline-red: #D64545;
  --success-teal: #147D6F;

  --surface-bg: #F4F6F3;
  --surface: #FFFFFF;
  --on-surface: #142420;
  --on-surface-variant: #57685F;
  --outline: #DCE4DE;

  --radius-sm: 0.4rem;
  --radius-md: 0.65rem;
  --radius-lg: 0.9rem;
  --radius-full: 9999px;

  --shadow-card: 0 3px 10px rgba(20, 36, 32, 0.07);
  --shadow-pop: 0 14px 30px rgba(20, 36, 32, 0.18);

  --font-display: 'Fraunces', serif;
  --font-body: 'Atkinson Hyperlegible Next', system-ui, sans-serif;

  --header-bg: rgba(255,255,255,0.9);
}

/* ===== Dark Mode ===== */
[data-theme="dark"]{
  --primary: #4FAE8C;
  --primary-dark: #6FC3A4;
  --primary-tint: #123128;
  --secondary: #D3AD54;
  --secondary-dark: #E8C87A;
  --secondary-tint: #2E2712;
  --tertiary: #E8965A;
  --tertiary-tint: #2E2013;
  --deadline-red: #F17272;
  --success-teal: #4FAE8C;

  --surface-bg: #0E1714;
  --surface: #172420;
  --on-surface: #EAF1EC;
  --on-surface-variant: #93A69C;
  --outline: #26362F;

  --shadow-card: 0 4px 14px rgba(0,0,0,0.35);
  --shadow-pop: 0 16px 34px rgba(0,0,0,0.55);

  --header-bg: rgba(14,23,20,0.85);
}
[data-theme="dark"] body{ color-scheme: dark; }
[data-theme="dark"] .announcement-board{ border-color: rgba(232,150,90,0.3); }
[data-theme="dark"] .announcement-item{ border-color: rgba(232,150,90,0.2); }
[data-theme="dark"] .status-pill.berjalan{ background: rgba(232,150,90,0.2); color:#E8965A; }
[data-theme="dark"] .status-pill.selesai{ background: rgba(79,174,140,0.18); color:#8FD6BA; }
[data-theme="dark"] .structure-role{ border-color: rgba(211,173,84,0.3); }
[data-theme="dark"] .brand-badge{ box-shadow: 0 0 0 1px rgba(255,255,255,0.06); }
[data-theme="dark"] .hero-section::before{ opacity:0.18; }

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  background: var(--surface-bg);
  color: var(--on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4{ font-family: var(--font-display); margin: 0; line-height: 1.18; font-weight:600; }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor: pointer; }
img{ max-width: 100%; display:block; }

.container{
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Eyebrow — pakai penanda bintang, bukan bulatan generik */
.eyebrow{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--secondary-dark);
  margin-bottom: 0.4rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
[data-theme="dark"] .eyebrow{ color: var(--secondary); }
.eyebrow::before{
  content: "\2726";
  font-size: 0.85em;
  line-height: 1;
  color: var(--secondary);
  flex-shrink: 0;
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:0.4rem;
  min-height: 44px;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease;
  white-space: nowrap;
}
.btn:active{ transform: scale(0.97); }
.btn-primary{ background: var(--primary); color:#fff; }
.btn-primary:hover{ background: var(--primary-dark); }
.btn-secondary{ background: var(--surface); color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover{ background: var(--primary-tint); }
.btn-upload{ cursor:pointer; }

/* ===== Header ===== */
.site-header{
  position: sticky; top:0; z-index: 40;
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--outline);
  box-shadow: inset 0 -2px 0 0 var(--secondary);
  transition: background .2s ease;
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height: 68px;
}
.brand{ display:flex; align-items:center; gap:0.65rem; }
.brand-badge{
  width:42px; height:42px;
  background: var(--primary); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-display); font-weight:700; font-size:0.8rem;
  flex-shrink:0; overflow:hidden;
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}
.brand-badge img{ width:100%; height:100%; object-fit:cover; }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-family: var(--font-display); font-weight:600; font-size:1.02rem; color: var(--on-surface); }
.brand-text small{ font-size:0.72rem; color: var(--on-surface-variant); }

.main-nav{ display:flex; align-items:center; }
.main-nav a{
  font-family: var(--font-display);
  font-weight:600; font-size:0.92rem;
  color: var(--on-surface-variant);
  padding: 0.5rem 0.1rem;
  margin-left: 1.4rem;
  position: relative;
  transition: color .15s;
}
.main-nav a:first-child{ margin-left:0; }
.main-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:2px; height:2px;
  background: var(--secondary); transform: scaleX(0); transform-origin:left;
  transition: transform .18s ease;
}
.main-nav a:hover, .main-nav a.active{ color: var(--on-surface); }
.main-nav a:hover::after, .main-nav a.active::after{ transform: scaleX(1); }

.nav-toggle{
  display:none; flex-direction:column; gap:5px;
  background:none; border:none; padding: 8px;
}
.nav-toggle span{ width:22px; height:2px; background: var(--on-surface); border-radius:2px; }

/* ===== Theme Toggle ===== */
.theme-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--outline); background: var(--surface);
  color: var(--on-surface-variant); flex-shrink:0;
  transition: background .15s ease, color .15s ease, transform .2s ease;
}
.theme-toggle:hover{ background: var(--primary-tint); color: var(--primary); }
.theme-toggle:active{ transform: scale(0.9); }
.theme-toggle svg{ width:19px; height:19px; }
.theme-toggle .icon-moon{ display:none; }
[data-theme="dark"] .theme-toggle .icon-sun{ display:none; }
[data-theme="dark"] .theme-toggle .icon-moon{ display:block; }

/* ===== Sections ===== */
.section{ padding: 2.75rem 0; }
.section.alt-bg{ background: var(--primary-tint); }
.section-head{
  display:flex; align-items:flex-end; justify-content:space-between; gap:1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.section-desc{ color: var(--on-surface-variant); margin-bottom:1.25rem; font-size:0.94rem; max-width: 60ch; }

/* ===== Hero / Beranda ===== */
.hero-section{ position:relative; overflow:hidden; padding-top: 2.5rem; }
.hero-section::before{
  content:"";
  position:absolute; inset:0;
  background-image: radial-gradient(var(--outline) 1px, transparent 1.5px);
  background-size: 26px 26px;
  opacity:0.65;
  pointer-events:none;
  -webkit-mask-image: linear-gradient(180deg, black, transparent 78%);
  mask-image: linear-gradient(180deg, black, transparent 78%);
}
.hero-section > .container{ position:relative; z-index:1; }
.hero-text{ max-width: 640px; margin-bottom: 1.75rem; }
.hero-text h1{ font-size: 2.1rem; font-weight:600; color: var(--on-surface); margin-bottom:0.6rem; }
.hero-sub{ color: var(--on-surface-variant); font-size:1.02rem; }

.announcement-board{
  background: var(--tertiary-tint);
  border: 1px solid #F0CFA5;
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 2rem;
}
[data-theme="dark"] .announcement-board{ border-color: rgba(232,150,90,0.3); }
.board-head{
  display:flex; align-items:center; justify-content:space-between; gap:0.75rem;
  flex-wrap: wrap; margin-bottom: 0.9rem;
}
.board-head h2{ font-size:1.15rem; display:flex; align-items:center; gap:0.4rem; }
.announcement-list{ display:flex; flex-direction:column; gap:0.7rem; }
.announcement-item{
  background: var(--surface); border-radius: var(--radius-md);
  padding: 0.9rem 1rem; border:1px solid #F0CFA5;
  display:flex; justify-content:space-between; gap:0.75rem;
}
.announcement-item .a-body strong{ font-family: var(--font-display); font-weight:600; display:block; margin-bottom:0.2rem; }
.announcement-item .a-body p{ color: var(--on-surface-variant); font-size:0.9rem; }
.announcement-item .a-date{ font-size:0.75rem; color: var(--on-surface-variant); white-space:nowrap; }
.empty-note{ color: var(--on-surface-variant); font-size:0.9rem; padding: 0.5rem 0.2rem; }
.item-actions{ display:flex; gap:0.35rem; align-items:flex-start; }
.icon-btn{
  background:none; border:none; font-size:0.95rem;
  color: var(--on-surface-variant); padding:2px 4px; border-radius:6px;
}
.icon-btn:hover{ background: var(--primary-tint); color:var(--primary); }

.quick-links{
  display:grid; grid-template-columns: repeat(4, 1fr); gap:1rem;
}
.quick-card{
  background: var(--surface); border:1px solid var(--outline); border-radius: var(--radius-lg);
  border-top: 2px solid var(--primary);
  padding: 1.1rem; box-shadow: var(--shadow-card);
  display:flex; flex-direction:column; gap:0.3rem;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.quick-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.quick-icon{ font-size:1.5rem; }
.quick-title{ font-family: var(--font-display); font-weight:600; }
.quick-desc{ font-size:0.82rem; color: var(--on-surface-variant); }

/* ===== Jadwal ===== */
.schedule-tabs{
  display:flex; gap:0.4rem; overflow-x:auto; margin-bottom:1.25rem;
  padding-bottom: 0.2rem;
}
.schedule-tabs button{
  border:1px solid var(--outline); background: var(--surface);
  padding:0.5rem 1rem; border-radius: var(--radius-full);
  font-family: var(--font-body); font-weight:700; font-size:0.85rem;
  white-space:nowrap; color: var(--on-surface);
}
.schedule-tabs button.active{ background: var(--primary); color:#fff; border-color:var(--primary); }

.schedule-wrap{
  background: var(--surface); border-radius: var(--radius-lg); border:1px solid var(--outline);
  box-shadow: var(--shadow-card); overflow:hidden;
}
.schedule-row{
  display:flex; align-items:center; gap:0.9rem;
  padding: 0.85rem 1.1rem; border-bottom:1px solid var(--outline);
}
.schedule-row:last-child{ border-bottom:none; }
.schedule-time{
  font-family: var(--font-body); font-weight:700; font-size:0.85rem;
  color: var(--secondary-dark); width:110px; flex-shrink:0;
}
[data-theme="dark"] .schedule-time{ color: var(--secondary); }
.schedule-subject{ flex:1; font-weight:600; }
.schedule-edit{
  background:none; border:none; font-size:1rem; color: var(--on-surface-variant);
  padding:4px 6px; border-radius:6px;
}
.schedule-edit:hover{ background: var(--secondary-tint); color: var(--secondary-dark); }

/* ===== Tugas ===== */
.filter-row{ display:flex; gap:0.5rem; margin-bottom:1.25rem; flex-wrap:wrap; }
.chip{
  border:1px solid var(--outline); background: var(--surface); border-radius: var(--radius-full);
  padding:0.4rem 0.95rem; font-size:0.85rem; font-weight:700; font-family: var(--font-body);
  color: var(--on-surface-variant);
}
.chip.active{ background: var(--primary); border-color: var(--primary); color:#fff; }

.task-list{ display:grid; grid-template-columns: repeat(2, 1fr); gap:1rem; }
.task-card{
  background: var(--surface); border:1px solid var(--outline); border-radius: var(--radius-lg);
  padding:1.1rem; box-shadow: var(--shadow-card);
  display:flex; flex-direction:column; gap:0.55rem;
}
.task-top{ display:flex; justify-content:space-between; align-items:flex-start; gap:0.5rem; }
.task-subject{
  font-size:0.72rem; font-weight:700; font-family: var(--font-body);
  color: var(--primary-dark); background: var(--primary-tint);
  padding:0.2rem 0.6rem; border-radius: var(--radius-full); letter-spacing:0.02em;
}
[data-theme="dark"] .task-subject{ color: var(--primary-dark); }
.task-title{ font-family: var(--font-display); font-weight:600; font-size:1.04rem; }
.task-desc{ color: var(--on-surface-variant); font-size:0.88rem; }
.task-foot{ display:flex; justify-content:space-between; align-items:center; margin-top:0.3rem; }
.deadline{ font-size:0.82rem; font-weight:600; color: var(--deadline-red); }
.deadline.done{ color: var(--primary-dark); }
.status-pill{
  font-size:0.7rem; font-weight:700; padding:0.25rem 0.65rem; border-radius: var(--radius-full);
  font-family: var(--font-display);
}
.status-pill.berjalan{ background: var(--tertiary-tint); color:#9C5A1E; }
.status-pill.selesai{ background: var(--primary-tint); color: var(--primary-dark); }
.task-actions{ display:flex; gap:0.4rem; }

/* ===== Siswa ===== */
.avatar{
  border-radius:50%; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-body); font-weight:700; color:#fff; flex-shrink:0;
  background: var(--secondary);
}
.label-sm{ font-size:0.72rem; color: var(--on-surface-variant); font-weight:600; text-transform:uppercase; letter-spacing:0.04em; margin-bottom:0.15rem; }

.teacher-card{
  display:flex; align-items:center; gap:1rem;
  background: linear-gradient(135deg, var(--primary) 0%, #0A3B2E 100%);
  border-radius: var(--radius-lg);
  padding:1.25rem 1.4rem; margin-bottom:1.75rem;
  box-shadow: var(--shadow-pop);
  color:#fff;
}
.teacher-card .avatar{ width:64px; height:64px; font-size:1.15rem; border:3px solid rgba(255,255,255,0.35); }
.teacher-card .avatar img{ width:100%; height:100%; object-fit:cover; border-radius:50%; }
.teacher-card .label-sm{ color: rgba(255,255,255,0.75); }
.teacher-card h3{ color:#fff; font-size:1.15rem; }

.student-list{
  display:grid; grid-template-columns: repeat(4, 1fr); gap:1rem;
}
.student-item{
  display:flex; flex-direction:column; align-items:center; text-align:center; gap:0.55rem;
  background: var(--surface); border:1px solid var(--outline); border-radius: var(--radius-lg);
  padding: 1.3rem 0.9rem 1.1rem; box-shadow: var(--shadow-card);
  transition: transform .15s ease, box-shadow .15s ease;
  position: relative;
}
.student-item:hover{ transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.student-item .avatar-wrap{ position:relative; }
.student-item .avatar{ width:64px; height:64px; font-size:1.05rem; }
.student-item .avatar img{ width:100%; height:100%; object-fit:cover; border-radius:50%; }
.student-no{
  position:absolute; top:-6px; left:-6px;
  background: var(--tertiary); color:#fff; font-family: var(--font-body);
  font-size:0.68rem; font-weight:700; width:20px; height:20px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 2px 5px rgba(0,0,0,0.2); z-index:2;
}
.student-name{ font-family: var(--font-body); font-weight:700; font-size:0.88rem; line-height:1.3; }

/* ===== Struktur Organisasi Kelas ===== */
.structure-grid{
  display:grid; grid-template-columns: repeat(5, 1fr); gap:1rem;
  margin-bottom: 0.5rem;
}
.structure-item{
  display:flex; flex-direction:column; align-items:center; text-align:center; gap:0.45rem;
  background: var(--surface); border:1px solid var(--outline); border-radius: var(--radius-lg);
  padding: 1.25rem 0.8rem 1rem; box-shadow: var(--shadow-card);
  transition: transform .15s ease, box-shadow .15s ease;
}
.structure-item:hover{ transform: translateY(-3px); box-shadow: var(--shadow-pop); }
.structure-role{
  font-family: var(--font-body); font-weight:700; font-size:0.68rem;
  text-transform: uppercase; letter-spacing:0.04em;
  color: var(--secondary-dark); background: var(--secondary-tint);
  border: 1px solid #E7D6A6; padding:0.2rem 0.6rem; border-radius: var(--radius-full);
}
[data-theme="dark"] .structure-role{ color: var(--secondary); }
.structure-item .avatar{ background: var(--tertiary); }
.structure-nickname{ font-size:0.76rem; color: var(--on-surface-variant); }

/* ===== Galeri ===== */
.gallery-grid{
  display:grid; grid-template-columns: repeat(4, 1fr); gap:0.9rem;
}
.gallery-item{
  position:relative; aspect-ratio:1/1; border-radius: var(--radius-md);
  overflow:hidden; border:1px solid var(--outline); background: var(--surface);
}
.gallery-item img{ width:100%; height:100%; object-fit:cover; }
.gallery-remove{
  position:absolute; top:6px; right:6px;
  background: rgba(20,36,32,0.6); color:#fff; border:none;
  width:26px; height:26px; border-radius:50%; font-size:0.8rem;
}
.gallery-empty{
  grid-column: 1/-1; text-align:center; padding: 2.5rem 1rem;
  color: var(--on-surface-variant); border:1px dashed var(--outline);
  border-radius: var(--radius-lg); background: var(--surface);
}

/* ===== Footer ===== */
.site-footer{
  background: var(--primary-dark); color:#D6E8DF;
  padding: 1.5rem 0; margin-top:1rem;
}
.site-footer p{ font-size:0.82rem; text-align:center; max-width: 60ch; margin: 0 auto; }

/* ===== FAB (mobile) ===== */
.fab{
  display:none; position:fixed; right:1.1rem; bottom:1.1rem; z-index:45;
  width:56px; height:56px; border-radius:50%;
  background: var(--primary); color:#fff; font-size:1.6rem; border:none;
  box-shadow: var(--shadow-pop);
}
.fab-menu{
  display:none; position:fixed; right:1.1rem; bottom:4.6rem; z-index:45;
  flex-direction:column; gap:0.5rem;
}
.fab-menu.open{ display:flex; }
.fab-menu button{
  background: var(--surface); border:1px solid var(--outline); border-radius: var(--radius-full);
  padding:0.6rem 1rem; font-weight:600; font-size:0.85rem; box-shadow: var(--shadow-card);
  text-align:left; color: var(--on-surface);
}

/* ===== Modal ===== */
.modal-backdrop{
  display:none; position:fixed; inset:0; background: rgba(20,36,32,0.45);
  z-index: 60; align-items:flex-end; justify-content:center;
}
.modal-backdrop.open{ display:flex; }
.modal{
  background: var(--surface); width:100%; max-width:480px;
  border-radius: 1.1rem 1.1rem 0 0;
  padding: 1.25rem; max-height:88vh; overflow-y:auto;
  animation: slideUp .2s ease;
}
@keyframes slideUp{ from{ transform: translateY(24px); opacity:0; } to{ transform:translateY(0); opacity:1; } }
.modal-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:1rem; }
.modal-head h3{ font-weight:600; }
.modal-close{ background:none; border:none; font-size:1.1rem; color: var(--on-surface-variant); }
.form-group{ margin-bottom:0.9rem; }
.form-group label{
  display:block; font-family: var(--font-display); font-weight:600; font-size:0.85rem;
  margin-bottom:0.35rem;
}
.form-group input, .form-group textarea, .form-group select{
  width:100%; border:1px solid var(--outline); border-radius: var(--radius-sm);
  padding:0.65rem 0.8rem; font-family: var(--font-body); font-size:0.95rem;
  background: var(--surface-bg); color: var(--on-surface);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus{
  outline:none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-tint);
}
.form-group textarea{ resize:vertical; min-height:70px; }
.modal-actions{ display:flex; gap:0.6rem; margin-top:1rem; }
.modal-actions .btn{ flex:1; }

/* ===== Toast ===== */
.toast{
  position:fixed; left:50%; bottom:1.4rem; transform:translate(-50%, 20px);
  background: #16241F; color:#fff; padding:0.7rem 1.2rem;
  border-radius: var(--radius-full); font-size:0.88rem; font-weight:600;
  opacity:0; pointer-events:none; transition: all .25s ease; z-index:80;
}
.toast.show{ opacity:1; transform:translate(-50%, 0); }

/* ===== Easter Egg: Logo Spin ===== */
@keyframes brandSpin{ from{ transform: rotate(0deg) scale(1); } 50%{ transform: rotate(180deg) scale(1.15); } to{ transform: rotate(360deg) scale(1); } }
.brand-badge.spin-egg{ animation: brandSpin .8s ease; }

/* ===== Easter Egg: Konami Confetti ===== */
.confetti-piece{
  position: fixed; top:-20px; z-index: 90; pointer-events:none;
  width:9px; height:14px; opacity:0.9;
  animation-name: confettiFall; animation-timing-function: linear; animation-fill-mode: forwards;
}
@keyframes confettiFall{
  to{ transform: translateY(105vh) rotate(540deg); opacity:0.3; }
}

/* ===== Icons (SVG, bukan emoji) ===== */
svg{ display:block; }
.icon svg{ width:1.15em; height:1.15em; vertical-align:-0.2em; }
.quick-icon{ width:34px; height:34px; color: var(--primary); }
.quick-icon svg{ width:100%; height:100%; }
.icon-btn svg{ width:15px; height:15px; }
.gallery-remove svg{ width:13px; height:13px; }
.modal-close svg{ width:16px; height:16px; }
.fab svg{ width:24px; height:24px; }
.fab-menu button{ display:flex; align-items:center; gap:0.5rem; }
.fab-menu button svg{ width:16px; height:16px; color: var(--secondary-dark); flex-shrink:0; }
[data-theme="dark"] .fab-menu button svg{ color: var(--secondary); }

/* ===== Form Validation ===== */
.field-error{ color: var(--deadline-red); font-size:0.78rem; margin-top:0.35rem; min-height:1em; }

/* ===== Modal Tabs ===== */
.modal-tabs{ display:flex; gap:0.2rem; margin-bottom:1.1rem; border-bottom:1px solid var(--outline); }
.modal-tab-btn{
  background:none; border:none; padding:0.55rem 0.2rem; margin-right:1rem;
  font-family: var(--font-display); font-weight:600; font-size:0.88rem;
  color: var(--on-surface-variant); border-bottom:2px solid transparent;
}
.modal-tab-btn.active{ color: var(--primary); border-bottom-color: var(--primary); }

/* ===== Dropzone (Upload Foto) ===== */
.dropzone{
  border:2px dashed var(--outline); border-radius: var(--radius-md);
  padding: 1.75rem 1rem; text-align:center; cursor:pointer;
  background: var(--surface-bg); transition: border-color .15s ease, background .15s ease;
  margin-bottom:1rem;
}
.dropzone:hover, .dropzone.dragover{ border-color: var(--primary); background: var(--primary-tint); }
.dropzone-icon{
  display:inline-flex; width:44px; height:44px; border-radius:50%;
  background: var(--primary-tint); color: var(--primary);
  align-items:center; justify-content:center; margin-bottom:0.6rem;
}
.dropzone-icon svg{ width:22px; height:22px; }
.dropzone p{ font-size:0.9rem; color: var(--on-surface-variant); margin-bottom:0.25rem; }
.form-hint{ font-size:0.78rem; color: var(--on-surface-variant); }
#dropzonePreviewWrap{ position:relative; display:inline-block; }
#dropzonePreview{ max-width:100%; max-height:220px; border-radius: var(--radius-md); display:block; margin:0 auto; }
#removePreviewBtn{ position:absolute; top:-10px; right:-10px; background: var(--deadline-red); color:#fff; border-color: var(--deadline-red); }

.upload-progress-wrap{ margin-bottom:1rem; }
.upload-progress{
  width:100%; height:8px; border-radius: var(--radius-full);
  background: var(--outline); overflow:hidden; margin-bottom:0.35rem;
}
.upload-progress-bar{
  height:100%; width:0%; background: var(--primary);
  border-radius: var(--radius-full); transition: width .2s ease;
}
.upload-progress-label{ font-size:0.78rem; color: var(--on-surface-variant); font-weight:600; }

/* ===== Confirm / Warning Modal Icon ===== */
.confirm-icon{
  width:52px; height:52px; border-radius:50%; margin:0 auto 0.9rem;
  background: rgba(214,69,69,0.1); color: var(--deadline-red);
  display:flex; align-items:center; justify-content:center;
}
.confirm-icon svg{ width:26px; height:26px; }
.confirm-icon.info{ background: var(--primary-tint); color: var(--primary); }

/* ===== Activity Log ===== */
.activity-log{ display:flex; flex-direction:column; gap:0.6rem; }
.activity-item{
  display:flex; align-items:flex-start; gap:0.75rem;
  padding:0.7rem 0.85rem; border:1px solid var(--outline); border-radius: var(--radius-md);
  background: var(--surface-bg);
}
.activity-icon{
  width:32px; height:32px; border-radius:50%; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background: var(--primary-tint); color: var(--primary);
}
.activity-icon svg{ width:16px; height:16px; }
.activity-icon.delete{ background: rgba(214,69,69,0.12); color: var(--deadline-red); }
.activity-icon.create{ background: var(--primary-tint); color: var(--primary-dark); }
.activity-icon.update{ background: var(--tertiary-tint); color:#9C5A1E; }
.activity-meta{ font-size:0.78rem; color: var(--on-surface-variant); margin-top:0.15rem; }

/* ===== Settings Rows ===== */
.settings-row{
  display:flex; justify-content:space-between; align-items:center; gap:1rem;
  padding:0.9rem 0; border-bottom:1px solid var(--outline); flex-wrap:wrap;
}
.settings-row:last-child{ border-bottom:none; }
.settings-label{ font-family: var(--font-display); font-weight:600; font-size:0.92rem; margin-bottom:0.15rem; }
.settings-row select{
  border:1px solid var(--outline); border-radius: var(--radius-sm);
  padding:0.5rem 0.7rem; background: var(--surface); color: var(--on-surface);
  font-family: var(--font-body); font-size:0.88rem;
}

/* ===== Responsive ===== */
@media (max-width: 860px){
  .quick-links{ grid-template-columns: repeat(2, 1fr); }
  .task-list{ grid-template-columns: 1fr; }
  .gallery-grid{ grid-template-columns: repeat(3, 1fr); }
  .student-list{ grid-template-columns: repeat(3, 1fr); }
  .structure-grid{ grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 720px){
  .main-nav{
    position:absolute; top:68px; left:0; right:0;
    background: var(--surface); border-bottom:1px solid var(--outline);
    flex-direction:column; padding:0.6rem 1rem; gap:0.2rem;
    display:none;
  }
  .main-nav.open{ display:flex; }
  .main-nav a{ padding:0.7rem 0.5rem; margin-left:0; }
  .main-nav a::after{ display:none; }
  .nav-toggle{ display:flex; }
  .hero-text h1{ font-size:1.6rem; }
  .fab, .fab-menu{ display: none; }
  .fab{ display:flex; align-items:center; justify-content:center; }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
  .student-list{ grid-template-columns: repeat(2, 1fr); }
  .structure-grid{ grid-template-columns: repeat(2, 1fr); }
}