/*
Theme Name: StudyUpload Theme
Theme URI: https://studyupload.com
Description: Modern educational document sharing platform - Course Hero style
Author: StudyUpload
Version: 2.0
Template: astra
Text Domain: studyupload
*/

/* ============================================
   VARIABLES & RESET
   ============================================ */
:root {
  --su-primary: #6366F1;
  --su-primary-dark: #4F46E5;
  --su-primary-light: #EEF2FF;
  --su-primary-glow: rgba(99,102,241,0.15);
  --su-accent: #10B981;
  --su-accent-light: #ECFDF5;
  --su-orange: #F59E0B;
  --su-orange-light: #FEF3C7;
  --su-pink: #EC4899;
  --su-pink-light: #FDF2F8;
  --su-dark: #0F172A;
  --su-gray-900: #1E293B;
  --su-gray-800: #334155;
  --su-gray-700: #475569;
  --su-gray-600: #64748B;
  --su-gray-500: #94A3B8;
  --su-gray-400: #CBD5E1;
  --su-gray-300: #E2E8F0;
  --su-gray-200: #F1F5F9;
  --su-gray-100: #F8FAFC;
  --su-white: #FFFFFF;
  --su-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --su-radius: 10px;
  --su-radius-lg: 14px;
  --su-radius-xl: 20px;
  --su-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --su-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --su-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --su-shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
}

* { box-sizing: border-box; }
body { font-family: var(--su-font) !important; color: var(--su-dark); background: var(--su-white); -webkit-font-smoothing: antialiased; }

/* Hide Astra defaults & kill all spacing */
.ast-primary-header-bar,.site-header,.ast-above-header-bar,.ast-below-header-bar,#ast-desktop-header,header.site-header,.site-footer,.ast-footer-overlay,.ast-small-footer,#colophon { display:none !important; }
.ast-separate-container .ast-article-single,.ast-separate-container .ast-article-post,.ast-plain-container .ast-article-single,.ast-plain-container .ast-article-post { background:transparent !important; padding:0 !important; margin:0 !important; }
.ast-separate-container #primary,.ast-plain-container #primary { padding:0 !important; margin:0 !important; }
#page > .ast-container,.site-content .ast-container { max-width:100% !important; padding:0 !important; }
.entry-content { margin:0 !important; padding:0 !important; }
.entry-header,.entry-footer,.post-navigation { display:none !important; }
.ast-separate-container .site-main > .ast-row,.ast-plain-container .site-main > .ast-row { padding:0 !important; }
.site-content > .ast-container { padding:0 !important; }
.ast-separate-container .site-main,.ast-plain-container .site-main { padding:0 !important; margin:0 !important; }
.ast-separate-container .site-content .site-main,.ast-plain-container .site-content .site-main { padding:0 !important; }
.site-main { padding:0 !important; margin:0 !important; }
#primary { padding:0 !important; margin:0 !important; }
.site-content { padding-top:0 !important; }
article.page { margin:0 !important; padding:0 !important; }
.ast-article-single:not(.ast-related-post) { padding:0 !important; }
body .entry-content > *:not(.alignwide):not(.alignfull):not(.wp-block-image) { max-width:100% !important; }
.ast-page-builder-template .site-content > .ast-container { max-width:100% !important; padding:0 !important; }
.content-area.primary, #primary.content-area, div.content-area { margin:0 !important; padding:0 !important; }
.ast-separate-container #primary, .ast-plain-container #primary, #primary { margin-top:0 !important; margin-bottom:0 !important; }

/* ============================================
   HEADER
   ============================================ */
.su-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--su-gray-300);
  padding: 0 32px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.su-header-left { display:flex; align-items:center; gap:24px; flex:1; }
.su-logo { font-size:1.35rem; font-weight:800; color:var(--su-primary); text-decoration:none; display:flex; align-items:center; gap:10px; white-space:nowrap; }
.su-logo-icon { width:34px; height:34px; background:linear-gradient(135deg, var(--su-primary), #8B5CF6); border-radius:8px; display:flex; align-items:center; justify-content:center; }
.su-header-search { flex:1; max-width:520px; position:relative; }
.su-header-search input { width:100%; padding:10px 16px 10px 42px; border:1.5px solid var(--su-gray-300); border-radius:28px; font-size:0.9rem; outline:none; transition:all 0.2s; font-family:var(--su-font); background:var(--su-gray-100); }
.su-header-search input:focus { border-color:var(--su-primary); background:var(--su-white); box-shadow:0 0 0 3px var(--su-primary-glow); }
.su-header-search svg { position:absolute; left:14px; top:50%; transform:translateY(-50%); color:var(--su-gray-500); width:18px; height:18px; }
.su-header-nav { display:flex; align-items:center; gap:6px; }
.su-header-nav > a { font-size:0.88rem; font-weight:500; color:var(--su-gray-700); text-decoration:none; padding:8px 14px; border-radius:8px; transition:all 0.15s; white-space:nowrap; }
.su-header-nav > a:hover { background:var(--su-gray-200); color:var(--su-dark); }
.su-nav-upload { display:inline-flex !important; align-items:center; gap:6px; color:var(--su-primary) !important; font-weight:600 !important; }
.su-nav-avatar { width:34px !important; height:34px !important; border-radius:50% !important; background:var(--su-primary) !important; color:white !important; display:inline-flex !important; align-items:center; justify-content:center; font-weight:700 !important; font-size:0.85rem !important; padding:0 !important; }

/* Buttons */
.su-btn { display:inline-flex; align-items:center; justify-content:center; padding:10px 22px; border-radius:28px; font-size:0.88rem; font-weight:600; text-decoration:none; cursor:pointer; transition:all 0.2s; border:none; font-family:var(--su-font); }
.su-btn-primary { background:linear-gradient(135deg, var(--su-primary), #8B5CF6); color:var(--su-white); box-shadow:0 2px 8px var(--su-primary-glow); }
.su-btn-primary:hover { transform:translateY(-1px); box-shadow:0 4px 16px var(--su-primary-glow); color:var(--su-white); }
.su-btn-ghost { background:transparent; color:var(--su-gray-700); }
.su-btn-ghost:hover { background:var(--su-gray-200); }
.su-btn-accent { background:var(--su-accent); color:var(--su-white); }
.su-btn-accent:hover { background:#059669; color:var(--su-white); }
.su-btn-outline { background:transparent; border:1.5px solid var(--su-gray-300); color:var(--su-gray-700); }
.su-btn-outline:hover { border-color:var(--su-primary); color:var(--su-primary); }
.su-btn-dark { background:var(--su-dark); color:var(--su-white); }

/* ============================================
   HERO SECTION
   ============================================ */
.su-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #312E81 100%);
  padding: 80px 32px 60px; text-align: center; color: var(--su-white);
}
.su-hero::before {
  content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%;
  background: radial-gradient(circle at 30% 50%, rgba(99,102,241,0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(139,92,246,0.1) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow { 0%{transform:translate(0,0)} 100%{transform:translate(-5%,5%)} }
.su-hero-content { position:relative; z-index:1; max-width:720px; margin:0 auto; }
.su-hero h1 { font-size:3.2rem; font-weight:900; line-height:1.1; margin-bottom:16px; letter-spacing:-0.02em; }
.su-hero h1 .gradient-text { background:linear-gradient(135deg, #A78BFA, #60A5FA, #34D399); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.su-hero p { font-size:1.15rem; color:var(--su-gray-400); line-height:1.6; max-width:560px; margin:0 auto 32px; }

/* Upload Zone in Hero */
.su-hero-upload {
  max-width: 620px; margin: 0 auto;
  background: rgba(255,255,255,0.06); backdrop-filter:blur(10px);
  border: 2px dashed rgba(255,255,255,0.2); border-radius: var(--su-radius-xl);
  padding: 40px 32px; cursor:pointer;
  transition: all 0.3s;
}
.su-hero-upload:hover { border-color:rgba(99,102,241,0.6); background:rgba(99,102,241,0.08); }
.su-hero-upload.dragover { border-color:#A78BFA; background:rgba(99,102,241,0.15); }
.su-hero-upload .upload-icon-wrap {
  width:56px; height:56px; border-radius:14px;
  background:linear-gradient(135deg, var(--su-primary), #8B5CF6);
  display:flex; align-items:center; justify-content:center; margin:0 auto 16px;
  box-shadow: 0 4px 20px rgba(99,102,241,0.4);
}
.su-hero-upload .upload-icon-wrap svg { width:28px; height:28px; color:white; }
.su-hero-upload h3 { font-size:1.1rem; font-weight:600; color:white; margin-bottom:6px; }
.su-hero-upload h3 a { color:#A78BFA; text-decoration:underline; cursor:pointer; }
.su-hero-upload .upload-hint { font-size:0.85rem; color:var(--su-gray-500); }
.su-hero-upload #su-file-name { display:none; color:#A78BFA; font-weight:600; margin-top:10px; font-size:0.9rem; }

/* Stats Bar */
.su-stats-bar {
  display:flex; justify-content:center; align-items:center; gap:40px;
  padding:24px 32px; background:var(--su-gray-100); border-bottom:1px solid var(--su-gray-300);
}
.su-stat { text-align:center; }
.su-stat-num { display:block; font-size:1.5rem; font-weight:800; color:var(--su-dark); }
.su-stat-label { font-size:0.8rem; color:var(--su-gray-600); font-weight:500; text-transform:uppercase; letter-spacing:0.05em; }
.su-stat-divider { width:1px; height:32px; background:var(--su-gray-300); }

/* ============================================
   DOCUMENT GRID (Homepage Feed)
   ============================================ */
.su-feed-section { max-width:1200px; margin:0 auto; padding:48px 32px; }
.su-section-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:28px; }
.su-section-header h2 { font-size:1.6rem; font-weight:800; color:var(--su-dark); }
.su-link-arrow { font-size:0.9rem; font-weight:600; color:var(--su-primary); text-decoration:none; }
.su-link-arrow:hover { text-decoration:underline; }

.su-doc-grid {
  display:grid; grid-template-columns:repeat(4, 1fr); gap:20px;
}

.su-doc-card-v2 {
  background:var(--su-white); border:1px solid var(--su-gray-300); border-radius:var(--su-radius-lg);
  overflow:hidden; cursor:pointer; transition:all 0.25s; text-decoration:none; color:var(--su-dark);
}
.su-doc-card-v2:hover { border-color:var(--su-primary); box-shadow:var(--su-shadow-md); transform:translateY(-3px); }

.su-doc-card-thumb {
  height:120px; display:flex; align-items:center; justify-content:center; position:relative;
}
.su-doc-type-badge {
  position:absolute; top:10px; left:10px;
  background:rgba(255,255,255,0.85); backdrop-filter:blur(4px);
  padding:3px 10px; border-radius:20px; font-size:0.72rem; font-weight:600; color:var(--su-gray-800);
}
.su-doc-card-body { padding:14px 16px 16px; }
.su-doc-card-body h3 { font-size:0.92rem; font-weight:700; line-height:1.35; margin-bottom:6px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.su-doc-card-school { font-size:0.78rem; color:var(--su-primary); font-weight:600; display:block; margin-bottom:8px; }
.su-doc-card-bottom { display:flex; justify-content:space-between; align-items:center; }
.su-doc-card-subject { font-size:0.75rem; color:var(--su-gray-600); background:var(--su-gray-200); padding:2px 8px; border-radius:12px; }
.su-doc-card-pages { font-size:0.75rem; color:var(--su-gray-500); }

/* ============================================
   FEATURES SECTION
   ============================================ */
.su-features-section { padding:64px 32px; background:var(--su-gray-100); }
.su-features-inner { max-width:1100px; margin:0 auto; text-align:center; }
.su-features-inner h2 { font-size:2rem; font-weight:800; margin-bottom:12px; }
.su-features-inner .subtitle { color:var(--su-gray-600); font-size:1.05rem; margin-bottom:48px; }
.su-features-row { display:grid; grid-template-columns:repeat(3, 1fr); gap:28px; }
.su-feature-card {
  background:var(--su-white); border-radius:var(--su-radius-lg); padding:32px 24px;
  border:1px solid var(--su-gray-300); text-align:left; transition:all 0.25s;
}
.su-feature-card:hover { border-color:var(--su-primary); box-shadow:var(--su-shadow-md); }
.su-feature-icon {
  width:48px; height:48px; border-radius:12px; display:flex; align-items:center; justify-content:center;
  font-size:1.5rem; margin-bottom:16px;
}
.su-feature-card h3 { font-size:1.05rem; font-weight:700; margin-bottom:8px; }
.su-feature-card p { font-size:0.88rem; color:var(--su-gray-600); line-height:1.55; }

/* ============================================
   SUBJECTS GRID
   ============================================ */
.su-subjects-section { max-width:1200px; margin:0 auto; padding:56px 32px; }
.su-subjects-section h2 { font-size:1.6rem; font-weight:800; text-align:center; margin-bottom:36px; }
.su-subjects-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(160px, 1fr)); gap:14px; }
.su-subject-card {
  background:var(--su-white); border:1px solid var(--su-gray-300); border-radius:var(--su-radius-lg);
  padding:20px 14px; text-align:center; cursor:pointer; transition:all 0.2s; text-decoration:none;
}
.su-subject-card:hover { border-color:var(--su-primary); box-shadow:var(--su-shadow); transform:translateY(-2px); }
.su-subject-card .subj-icon { font-size:1.8rem; margin-bottom:8px; display:block; }
.su-subject-card .subj-name { font-weight:700; font-size:0.85rem; color:var(--su-dark); display:block; }
.su-subject-card .subj-count { font-size:0.75rem; color:var(--su-gray-500); margin-top:3px; display:block; }

/* ============================================
   SCHOOLS SECTION
   ============================================ */
.su-schools-section { padding:56px 32px; background:var(--su-gray-100); }
.su-schools-section h2 { font-size:1.6rem; font-weight:800; text-align:center; margin-bottom:8px; }
.su-schools-section .subtitle { text-align:center; color:var(--su-gray-600); margin-bottom:36px; }
.su-schools-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(240px, 1fr)); gap:12px; max-width:1000px; margin:0 auto; }
.su-school-card {
  background:var(--su-white); border:1px solid var(--su-gray-300); border-radius:var(--su-radius);
  padding:14px 18px; display:flex; align-items:center; gap:12px; cursor:pointer; transition:all 0.2s; text-decoration:none; color:var(--su-dark);
}
.su-school-card:hover { border-color:var(--su-primary); box-shadow:var(--su-shadow); }
.su-school-card .school-avatar {
  width:38px; height:38px; border-radius:50%; background:linear-gradient(135deg, var(--su-primary-light), #E0E7FF);
  display:flex; align-items:center; justify-content:center; font-weight:800; font-size:0.85rem; color:var(--su-primary); flex-shrink:0;
}
.su-school-card .school-name { font-weight:600; font-size:0.88rem; display:block; }
.su-school-card .school-docs { font-size:0.78rem; color:var(--su-gray-500); }

/* ============================================
   CTA SECTION
   ============================================ */
.su-cta-section {
  padding:80px 32px; text-align:center;
  background:linear-gradient(135deg, var(--su-dark), #1E1B4B);
  color:var(--su-white);
}
.su-cta-section h2 { font-size:2.2rem; font-weight:900; margin-bottom:12px; }
.su-cta-section p { color:var(--su-gray-400); font-size:1.05rem; margin-bottom:32px; max-width:500px; margin-left:auto; margin-right:auto; }
.su-cta-buttons { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ============================================
   SIGNUP / LOGIN PAGES
   ============================================ */
.su-signup-wrapper { display:grid; grid-template-columns:1fr 1fr; min-height:calc(100vh - 64px); }
.su-signup-left {
  background:linear-gradient(135deg, #0F172A, #312E81);
  padding:80px 60px; display:flex; flex-direction:column; justify-content:center; color:white;
}
.su-signup-left h2 { font-size:2.5rem; font-weight:900; line-height:1.15; margin-bottom:40px; }
.su-signup-benefit { display:flex; gap:16px; margin-bottom:24px; }
.su-signup-benefit .benefit-icon {
  width:42px; height:42px; border-radius:10px; background:linear-gradient(135deg, var(--su-primary), #8B5CF6);
  display:flex; align-items:center; justify-content:center; color:white; font-size:1.1rem; flex-shrink:0;
}
.su-signup-benefit h4 { font-weight:700; font-size:1rem; color:white; margin-bottom:3px; }
.su-signup-benefit p { font-size:0.88rem; color:var(--su-gray-400); margin:0; }
.su-signup-right { padding:60px; display:flex; flex-direction:column; justify-content:center; align-items:center; }
.su-signup-form { max-width:400px; width:100%; }
.su-signup-form h2 { font-size:1.8rem; font-weight:800; text-align:center; margin-bottom:8px; }
.su-signup-form .form-subtitle { text-align:center; color:var(--su-gray-600); margin-bottom:24px; }
.su-role-toggle { display:flex; margin-bottom:24px; background:var(--su-gray-200); border-radius:28px; padding:4px; }
.su-role-toggle button { flex:1; padding:10px; border:none; border-radius:24px; font-size:0.88rem; font-weight:600; cursor:pointer; transition:all 0.2s; font-family:var(--su-font); background:transparent; color:var(--su-gray-600); }
.su-role-toggle button.active { background:var(--su-dark); color:white; box-shadow:var(--su-shadow); }
.su-social-btn { width:100%; padding:12px; border-radius:var(--su-radius); font-size:0.92rem; font-weight:500; cursor:pointer; display:flex; align-items:center; justify-content:center; gap:10px; margin-bottom:10px; font-family:var(--su-font); transition:all 0.2s; }
.su-social-google { background:var(--su-white); border:1.5px solid var(--su-gray-300); color:var(--su-dark); }
.su-social-google:hover { background:var(--su-gray-100); }
.su-social-apple { background:var(--su-dark); border:1.5px solid var(--su-dark); color:white; }
.su-divider { display:flex; align-items:center; gap:16px; margin:18px 0; color:var(--su-gray-500); font-size:0.82rem; }
.su-divider::before,.su-divider::after { content:''; flex:1; height:1px; background:var(--su-gray-300); }

/* Forms */
.su-form-group { margin-bottom:14px; }
.su-form-group label { display:block; font-size:0.82rem; font-weight:600; color:var(--su-gray-700); margin-bottom:5px; }
.su-form-group input,.su-form-group select,.su-form-group textarea {
  width:100%; padding:11px 14px; border:1.5px solid var(--su-gray-300); border-radius:var(--su-radius);
  font-size:0.92rem; font-family:var(--su-font); color:var(--su-dark); outline:none; transition:all 0.2s; background:var(--su-white);
}
.su-form-group input:focus,.su-form-group select:focus,.su-form-group textarea:focus { border-color:var(--su-primary); box-shadow:0 0 0 3px var(--su-primary-glow); }
.su-form-footer { text-align:center; margin-top:18px; font-size:0.85rem; color:var(--su-gray-600); }
.su-form-footer a { color:var(--su-primary); text-decoration:none; font-weight:600; }

/* ============================================
   UPLOAD PAGE
   ============================================ */
.su-upload-page { max-width:800px; margin:0 auto; padding:40px 24px 80px; }
.su-upload-page h1 { font-size:2rem; font-weight:800; text-align:center; margin-bottom:8px; }
.su-upload-page .page-subtitle { text-align:center; color:var(--su-gray-600); margin-bottom:36px; }
.su-upload-dropzone {
  border:2px dashed var(--su-gray-400); border-radius:var(--su-radius-xl); padding:56px 32px;
  text-align:center; background:var(--su-gray-100); transition:all 0.3s; cursor:pointer; margin-bottom:28px;
}
.su-upload-dropzone:hover,.su-upload-dropzone.dragover { border-color:var(--su-primary); background:var(--su-primary-light); }
.su-upload-dropzone .drop-icon { font-size:2.5rem; margin-bottom:14px; }
.su-upload-dropzone h3 { font-size:1.15rem; margin-bottom:6px; }
.su-upload-dropzone h3 a { color:var(--su-primary); text-decoration:underline; cursor:pointer; }
.su-upload-dropzone p { color:var(--su-gray-500); font-size:0.88rem; }
.su-upload-meta { background:var(--su-white); border:1px solid var(--su-gray-300); border-radius:var(--su-radius-lg); padding:28px; }
.su-upload-meta h3 { font-size:1.1rem; font-weight:700; margin-bottom:18px; }
.su-upload-meta .form-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-bottom:14px; }

/* Browse pages */
.su-browse-page { max-width:1200px; margin:0 auto; padding:30px 24px; }
.su-browse-header h1 { font-size:1.6rem; font-weight:700; margin-bottom:4px; }
.su-browse-header .result-count { color:var(--su-gray-500); font-size:0.9rem; }
.su-filter-bar { display:flex; gap:10px; margin:20px 0 24px; flex-wrap:wrap; }
.su-filter-btn { padding:7px 18px; border:1.5px solid var(--su-gray-300); border-radius:24px; background:var(--su-white); font-size:0.82rem; font-weight:500; cursor:pointer; color:var(--su-gray-700); font-family:var(--su-font); transition:all 0.2s; }
.su-filter-btn:hover,.su-filter-btn.active { border-color:var(--su-primary); color:var(--su-primary); background:var(--su-primary-light); }
.su-doc-list { display:flex; flex-direction:column; gap:12px; }
.su-doc-card { display:flex; gap:16px; padding:18px; border:1px solid var(--su-gray-300); border-radius:var(--su-radius-lg); background:var(--su-white); cursor:pointer; transition:all 0.2s; text-decoration:none; color:var(--su-dark); }
.su-doc-card:hover { border-color:var(--su-primary); box-shadow:var(--su-shadow-md); }
.su-doc-thumb { width:56px; height:68px; background:var(--su-gray-200); border-radius:8px; display:flex; align-items:center; justify-content:center; flex-shrink:0; font-size:1.4rem; }
.su-doc-info h3 { font-size:0.95rem; font-weight:600; margin-bottom:4px; }
.su-doc-info .doc-meta { font-size:0.78rem; color:var(--su-gray-500); display:flex; gap:14px; flex-wrap:wrap; }
.su-doc-info .doc-school { font-size:0.82rem; color:var(--su-primary); font-weight:500; margin-top:3px; }
.su-doc-badge { display:inline-block; padding:2px 10px; border-radius:12px; font-size:0.72rem; font-weight:600; }
.su-doc-badge.free { background:#D1FAE5; color:#065F46; }
.su-doc-badge.premium { background:#FEF3C7; color:#92400E; }

/* Guest upload prompt modal */
.su-guest-prompt { display:none; position:fixed; inset:0; z-index:9999; background:rgba(0,0,0,0.5); backdrop-filter:blur(4px); align-items:center; justify-content:center; }
.su-guest-prompt.active { display:flex; }
.su-guest-prompt-card { background:white; border-radius:var(--su-radius-xl); padding:40px; max-width:420px; width:90%; text-align:center; box-shadow:var(--su-shadow-lg); }
.su-guest-prompt-card h3 { font-size:1.3rem; font-weight:800; margin-bottom:8px; }
.su-guest-prompt-card p { color:var(--su-gray-600); font-size:0.92rem; margin-bottom:24px; }

/* ============================================
   FOOTER
   ============================================ */
.su-footer { background:var(--su-dark); color:var(--su-gray-500); padding:60px 32px 30px; }
.su-footer-inner { max-width:1200px; margin:0 auto; }
.su-footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; margin-bottom:40px; }
.su-footer-brand .footer-logo { font-size:1.25rem; font-weight:800; color:var(--su-white); margin-bottom:12px; display:flex; align-items:center; gap:8px; }
.su-footer-brand p { font-size:0.85rem; line-height:1.6; }
.su-footer-social { margin-top:16px; font-size:0.82rem; }
.su-footer-social a { color:var(--su-gray-400); text-decoration:none; }
.su-footer-social a:hover { color:white; }
.su-footer-col h4 { color:var(--su-white); font-size:0.88rem; font-weight:700; margin-bottom:14px; }
.su-footer-col a { display:block; color:var(--su-gray-500); text-decoration:none; font-size:0.85rem; padding:3px 0; transition:color 0.2s; }
.su-footer-col a:hover { color:var(--su-white); }
.su-footer-bottom { border-top:1px solid rgba(255,255,255,0.08); padding-top:20px; text-align:center; font-size:0.8rem; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) { .su-doc-grid { grid-template-columns:repeat(3, 1fr); } }
@media (max-width: 768px) {
  .su-header { padding:0 16px; }
  .su-header-search { display:none; }
  .su-header-nav a:not(.su-btn):not(.su-nav-upload) { display:none; }
  .su-hero { padding:48px 20px 40px; }
  .su-hero h1 { font-size:2.2rem; }
  .su-hero-upload { padding:28px 20px; }
  .su-stats-bar { gap:20px; flex-wrap:wrap; }
  .su-doc-grid { grid-template-columns:repeat(2, 1fr); gap:12px; }
  .su-features-row { grid-template-columns:1fr; }
  .su-signup-wrapper { grid-template-columns:1fr; }
  .su-signup-left { padding:40px 24px; }
  .su-signup-right { padding:40px 24px; }
  .su-footer-grid { grid-template-columns:1fr 1fr; }
  .su-upload-meta .form-row { grid-template-columns:1fr; }
  .su-subjects-grid { grid-template-columns:repeat(auto-fill, minmax(140px, 1fr)); }
}
@media (max-width: 480px) {
  .su-doc-grid { grid-template-columns:1fr; }
  .su-footer-grid { grid-template-columns:1fr; }
}


/* ===== Browse Schools Grid ===== */
.su-schools-browse-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
    padding: 0 20px;
    max-width: 1280px;
    margin: 0 auto;
}
.su-school-browse-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}
.su-school-browse-card:hover {
    border-color: var(--su-primary, #6366F1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.12);
    transform: translateY(-2px);
}
.su-school-browse-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #6366F1, #818CF8);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.su-school-browse-info h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #1F2937;
    margin: 0 0 4px;
    line-height: 1.3;
}
.su-school-browse-location {
    font-size: 0.82rem;
    color: #6B7280;
    display: block;
    margin-bottom: 6px;
}
.su-school-browse-meta {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 0.78rem;
    color: #9CA3AF;
}
.su-school-type-badge {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.su-school-type-badge.public {
    background: #ECFDF5;
    color: #059669;
}
.su-school-type-badge.private {
    background: #EEF2FF;
    color: #6366F1;
}

/* Browse page common */
.su-browse-page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}
.su-browse-header {
    text-align: center;
    margin-bottom: 30px;
}
.su-browse-header h1 {
    font-size: 2rem;
    font-weight: 800;
    color: #1F2937;
    margin: 0 0 8px;
}
.su-browse-header .result-count {
    font-size: 1rem;
    color: #6B7280;
    margin: 0;
}
.su-subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    max-width: 1280px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .su-schools-browse-grid {
        grid-template-columns: 1fr;
    }
    .su-subjects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
.su-credit-nav { display:inline-flex !important; align-items:center; gap:4px; background:linear-gradient(135deg,#FEF3C7,#FFF7ED) !important; color:#92400E !important; padding:5px 12px !important; border-radius:12px !important; font-size:0.78rem !important; font-weight:700 !important; border:1px solid #FCD34D !important; text-decoration:none !important; }
.su-credit-nav:hover { background:linear-gradient(135deg,#FCD34D,#FEF3C7) !important; transform:translateY(-1px); }