/* ── Reset & base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary:   #004d4d;
  --accent:    #008080;
  --bg:        #f4f7f6;
  --white:     #ffffff;
  --border:    #e2e8f0;
  --text:      #1e293b;
  --muted:     #64748b;
  --danger:    #dc2626;
  --warning:   #d97706;
  --success:   #059669;
  --info:      #0284c7;
  --purple:    #7c3aed;
  --radius:    10px;
  --shadow:    0 4px 12px rgba(0,0,0,.07);
  --shadow-sm: 0 1px 4px rgba(0,0,0,.06);
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ── Navbar ────────────────────────────────────────────────────────────────── */
.navbar {
  background: var(--primary);
  color: #fff;
  padding: .9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
  position: sticky;
  top: 0;
  z-index: 200;
}
.navbar-brand {
  display: flex; align-items: center; gap: .6rem;
  font-size: 1rem; font-weight: 800; color: #fff; letter-spacing: -.02em;
  white-space: nowrap;
}
.navbar-brand i { font-size: 1.2rem; flex-shrink: 0; }
.navbar-links { display: flex; align-items: center; gap: .8rem; }
.navbar-links a {
  color: rgba(255,255,255,.82); font-size: .88rem; font-weight: 500;
  padding: .35rem .7rem; border-radius: 6px; transition: all .2s;
  white-space: nowrap;
}
.navbar-links a:hover { background: rgba(255,255,255,.12); color: #fff; text-decoration: none; }
.navbar-links a.active { background: rgba(255,255,255,.18); color: #fff; }
.nav-user { display: flex; align-items: center; gap: .5rem;
  background: rgba(255,255,255,.1); padding: .3rem .8rem; border-radius: 20px;
  font-size: .83rem; color: rgba(255,255,255,.9); white-space: nowrap; }

/* Hamburger button (mobile only) */
.nav-hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  background: transparent; border: none; cursor: pointer;
  padding: .4rem; border-radius: 6px; flex-shrink: 0;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: #fff; border-radius: 2px; transition: all .3s;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed; inset: 0; top: 56px; z-index: 190;
  background: var(--primary);
  flex-direction: column; padding: 1.2rem 1.5rem;
  gap: .3rem; overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu a, .mobile-menu .nav-user {
  display: flex; align-items: center; gap: .7rem;
  color: #fff; font-size: 1rem; font-weight: 600;
  padding: .85rem 1rem; border-radius: 8px;
  text-decoration: none; transition: background .15s;
  background: rgba(255,255,255,.05);
}
.mobile-menu a:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.mobile-menu .nav-user {
  background: rgba(255,255,255,.1);
  flex-direction: column; align-items: flex-start; gap: .2rem;
  border-radius: 8px; cursor: default;
}
.mobile-menu-divider {
  height: 1px; background: rgba(255,255,255,.12);
  margin: .5rem 0;
}
.role-badge {
  font-size: .68rem; font-weight: 700; padding: .15rem .5rem; border-radius: 10px;
  text-transform: uppercase; letter-spacing: .04em;
}
.role-Admin     { background: #fbbf24; color: #78350f; }
.role-Estudiante{ background: #6ee7b7; color: #065f46; }
.role-Asesor    { background: #93c5fd; color: #1e3a5f; }
.role-Jurado    { background: #c4b5fd; color: #3b0764; }

/* ── Main content ──────────────────────────────────────────────────────────── */
.main-content { flex: 1; padding: 2rem; max-width: 1200px; margin: 0 auto; width: 100%; }

/* ── Table wrapper (horizontal scroll on mobile) ───────────────────────────── */
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ── Flash messages ────────────────────────────────────────────────────────── */
.flash-container { margin-bottom: 1.2rem; }
.flash {
  display: flex; align-items: center; gap: .7rem;
  padding: .75rem 1.2rem; border-radius: var(--radius);
  font-size: .88rem; font-weight: 500; margin-bottom: .5rem;
  border-left: 4px solid;
}
.flash-success { background: #f0fdf4; border-color: var(--success); color: #065f46; }
.flash-error   { background: #fef2f2; border-color: var(--danger);  color: #991b1b; }
.flash-warning { background: #fff7ed; border-color: var(--warning);  color: #92400e; }
.flash-info    { background: #eff6ff; border-color: var(--info);    color: #1e3a5f; }

/* ── Card ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}
.card-sm { padding: 1.2rem; }
.card h2 { font-size: 1.2rem; color: var(--primary); margin-bottom: 1rem; }
.card h3 { font-size: 1rem; color: var(--primary); margin-bottom: .8rem; }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .55rem 1.2rem; border-radius: 8px; font-weight: 600;
  font-size: .875rem; cursor: pointer; transition: all .2s;
  border: 1px solid transparent; text-decoration: none;
}
.btn:hover { text-decoration: none; filter: brightness(.92); }
.btn-primary  { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-accent   { background: var(--accent);  color: #fff; border-color: var(--accent);  }
.btn-success  { background: var(--success); color: #fff; border-color: var(--success); }
.btn-warning  { background: var(--warning); color: #fff; border-color: var(--warning); }
.btn-danger   { background: var(--danger);  color: #fff; border-color: var(--danger);  }
.btn-ghost    { background: transparent; color: var(--primary); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg); }
.btn-sm { padding: .35rem .8rem; font-size: .8rem; }

/* ── Form ──────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block; font-size: .82rem; font-weight: 700;
  color: var(--muted); text-transform: uppercase; letter-spacing: .05em;
  margin-bottom: .4rem;
}
.form-group label.req::after { content: ' *'; color: var(--danger); }
.form-control {
  width: 100%; padding: .65rem .9rem; border-radius: 7px;
  border: 1px solid var(--border); background: var(--white);
  color: var(--text); transition: border-color .2s;
}
.form-control:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,128,128,.12); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row.cols3 { grid-template-columns: 1fr 1fr 1fr; }

/* ── KPI cards ─────────────────────────────────────────────────────────────── */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px,1fr));
  gap: 1rem; margin-bottom: 1.5rem; }
.kpi-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.2rem;
  box-shadow: var(--shadow-sm); text-align: center;
}
.kpi-num { font-size: 2rem; font-weight: 800; color: var(--primary); line-height: 1; }
.kpi-label { font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted); margin-top: .3rem; }

/* ── Progress bar ──────────────────────────────────────────────────────────── */
.prog-track {
  height: 10px; background: var(--border); border-radius: 5px; overflow: hidden;
}
.prog-fill {
  height: 100%; border-radius: 5px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width .5s ease;
}
.prog-fill.warn { background: linear-gradient(90deg, var(--warning), #fb923c); }
.prog-fill.done { background: linear-gradient(90deg, var(--success), #34d399); }
.prog-wrap { display: flex; align-items: center; gap: .8rem; }
.prog-pct { font-size: .82rem; font-weight: 700; color: var(--primary); min-width: 38px; }

/* ── Status badges ─────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .65rem; border-radius: 20px;
  font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  white-space: nowrap;
}
.badge-gray   { background: #f1f5f9; color: #475569; }
.badge-blue   { background: #dbeafe; color: #1e40af; }
.badge-orange { background: #ffedd5; color: #9a3412; }
.badge-green  { background: #dcfce7; color: #166534; }
.badge-purple { background: #ede9fe; color: #5b21b6; }
.badge-teal   { background: #ccfbf1; color: #134e4a; }

/* ── Thesis table ──────────────────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; min-width: 600px; }
.data-table th {
  padding: .65rem 1rem; font-size: .72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em;
  color: var(--muted); background: #f8fafc;
  border-bottom: 2px solid var(--border); text-align: left;
  white-space: nowrap;
}
.data-table td { padding: .8rem 1rem; border-bottom: 1px solid #f1f5f9; }
.data-table tbody tr:hover { background: rgba(0,77,77,.03); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ── Section list ──────────────────────────────────────────────────────────── */
.section-row {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 1rem 1.2rem; border-bottom: 1px solid #f1f5f9;
  transition: background .15s;
}
.section-row:last-child { border-bottom: none; }
.section-row:hover { background: #f8fafc; }
.section-num {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary); color: #fff;
  font-size: .7rem; font-weight: 800; display: flex;
  align-items: center; justify-content: center; flex-shrink: 0; margin-top: .1rem;
}
.section-num.special { background: var(--purple); }
.section-info { flex: 1; min-width: 0; }
.section-name { font-weight: 700; font-size: .95rem; color: var(--text); }
.section-meta { font-size: .78rem; color: var(--muted); margin-top: .2rem; }
.section-actions {
  display: flex; align-items: center; gap: .5rem; flex-shrink: 0;
  flex-wrap: wrap;
}
.section-comment {
  margin-top: .5rem; padding: .5rem .8rem;
  background: #fffbeb; border: 1px solid #fde68a; border-radius: 6px;
  font-size: .82rem; color: #92400e;
}
.section-comment.approved {
  background: #f0fdf4; border-color: #bbf7d0; color: #065f46;
}

/* ── Tabs ───────────────────────────────────────────────────────────────────── */
.tabs-nav { display: flex; gap: .2rem; border-bottom: 2px solid var(--border);
  margin-bottom: 1.5rem; flex-wrap: wrap; }
.tab-btn {
  padding: .6rem 1.2rem; border: none; background: transparent;
  font-weight: 600; font-size: .88rem; color: var(--muted); cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: all .2s; border-radius: 6px 6px 0 0;
}
.tab-btn:hover { color: var(--primary); background: rgba(0,77,77,.04); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Members grid ──────────────────────────────────────────────────────────── */
.members-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr));
  gap: 1rem; margin-bottom: 1rem; }
.member-card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem; text-align: center;
}
.member-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 800; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center; margin: 0 auto .7rem;
}
.member-name { font-weight: 700; font-size: .9rem; }
.member-sub { font-size: .75rem; color: var(--muted); }

/* ── Jury eligibility banner ────────────────────────────────────────────────── */
.jury-eligible-banner {
  background: linear-gradient(135deg, #ede9fe, #f5f3ff);
  border: 1px solid #c4b5fd; border-radius: var(--radius);
  padding: 1.2rem 1.5rem; display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.5rem;
}
.jury-eligible-banner i { font-size: 1.8rem; color: var(--purple); }

/* ── Timeline (bitácora) ────────────────────────────────────────────────────── */
.timeline { padding: .5rem 0; }
.timeline-item { display: flex; gap: 1rem; margin-bottom: 1.5rem; position: relative; }
.timeline-item::before {
  content: ''; position: absolute; left: 19px; top: 36px;
  width: 2px; height: calc(100% + .5rem);
  background: var(--border);
}
.timeline-item:last-child::before { display: none; }
.tl-icon {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: .9rem; color: #fff;
}
.tl-body { flex: 1; }
.tl-title { font-weight: 700; font-size: .9rem; }
.tl-meta { font-size: .75rem; color: var(--muted); margin-top: .1rem; }
.tl-detail {
  margin-top: .4rem; font-size: .82rem; color: #475569;
  background: #f8fafc; border-radius: 6px; padding: .4rem .7rem;
}

/* ── Jury hidden notice ─────────────────────────────────────────────────────── */
.jury-hidden {
  background: #f8fafc; border: 1px dashed var(--border);
  border-radius: var(--radius); padding: 1.5rem; text-align: center;
  color: var(--muted);
}
.jury-hidden i { font-size: 2rem; display: block; margin-bottom: .5rem; opacity: .4; }

/* ── Footer ────────────────────────────────────────────────────────────────── */
footer {
  text-align: center; padding: 1rem;
  font-size: .78rem; color: var(--muted);
  border-top: 1px solid var(--border); margin-top: auto;
}

/* ── Modals responsive ──────────────────────────────────────────────────────── */
[id$='Modal'] > div {
  margin: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */

/* Medium — tablet */
@media(max-width: 900px) {
  .navbar-links { gap: .4rem; }
  .navbar-links a { padding: .3rem .5rem; font-size: .82rem; }
  .nav-user span.role-badge { display: none; }
}

/* Small — mobile */
@media(max-width: 700px) {
  /* Navbar: show hamburger, hide desktop links */
  .nav-hamburger { display: flex; }
  .navbar-links  { display: none; }
  .navbar { padding: .75rem 1rem; }

  /* Content */
  .main-content { padding: .85rem; }

  /* Forms */
  .form-row, .form-row.cols3 { grid-template-columns: 1fr; }

  /* KPIs: 2 columns */
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: .6rem; }
  .kpi-num  { font-size: 1.6rem; }

  /* Table: wrap in scroll container */
  .data-table { min-width: 560px; }

  /* Sections */
  .section-row { flex-direction: column; gap: .6rem; }
  .section-actions { width: 100%; justify-content: flex-start; }
  .section-actions .btn { flex: 1; justify-content: center; }

  /* Cards */
  .card { padding: 1rem; }
  .card-sm { padding: .85rem; }

  /* Tabs: scroll horizontally */
  .tabs-nav { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
  .tab-btn  { white-space: nowrap; padding: .5rem .9rem; font-size: .82rem; }

  /* Members grid: 2 cols min */
  .members-grid { grid-template-columns: repeat(2, 1fr); }

  /* Jury banner */
  .jury-eligible-banner { flex-direction: column; gap: .6rem; }
  .jury-eligible-banner i { font-size: 1.4rem; }

  /* Dashboard header */
  .dash-header { flex-direction: column; align-items: flex-start; gap: .6rem; }
  .dash-header .btn { width: 100%; justify-content: center; }

  /* Search input: full width */
  #searchInput { max-width: 100% !important; }

  /* Detail page: collapse 2-col grid */
  .detail-grid { grid-template-columns: 1fr !important; }

  /* Progress text: wrap */
  .prog-wrap { flex-wrap: wrap; }

  /* Modals: full screen */
  [id$='Modal'] > div {
    margin: 0;
    border-radius: 0;
    min-height: 100vh;
    max-height: 100vh;
  }
}

/* Very small screens */
@media(max-width: 400px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .members-grid { grid-template-columns: 1fr; }
  .badge { font-size: .65rem; padding: .15rem .45rem; }
  .navbar-brand { font-size: .9rem; }
}