/*
Theme Name: MedLearn Companion
Theme URI: https://yourwebsite.com
Author: Dr. Daniel R. Aldridge
Author URI: https://yourwebsite.com
Description: Interactive study portal for medical companion workbooks. Each workbook is a WordPress page with flashcards, quizzes, and progress tracking. Light professional design built for medical students and residents.
Version: 2.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: medlearn
*/

/* ━━━ RESET ━━━ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#f8f9fc;
  --bg-white:#ffffff;
  --bg-warm:#fefcf9;
  --bg-tint:#f0f4ff;
  --bg-tint2:#e8f5e9;
  --surface:#ffffff;
  --surface-2:#f4f6fa;
  --text:#1a2332;
  --text-2:#4a5568;
  --text-3:#8896a6;
  --text-inv:#ffffff;
  --accent:#2563eb;
  --accent-light:#dbeafe;
  --accent-dark:#1e40af;
  --teal:#0d9488;
  --teal-light:#ccfbf1;
  --teal-dark:#115e59;
  --green:#16a34a;
  --green-light:#dcfce7;
  --red:#dc2626;
  --red-light:#fee2e2;
  --amber:#d97706;
  --amber-light:#fef3c7;
  --purple:#7c3aed;
  --purple-light:#ede9fe;
  --border:#e5e7eb;
  --border-light:#f0f1f3;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 12px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.04);
  --shadow-lg:0 10px 30px rgba(0,0,0,.08),0 4px 8px rgba(0,0,0,.04);
  --radius:12px;
  --radius-lg:16px;
  --radius-xl:20px;
  --font:'Nunito Sans',sans-serif;
  --font-display:'Playfair Display',serif;
  --font-mono:'IBM Plex Mono',monospace;
}

html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:15px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
button{font-family:inherit;cursor:pointer}

/* ━━━ ANIMATIONS ━━━ */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleUp{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.anim-up{animation:fadeUp .5s ease both}
.anim-in{animation:fadeIn .4s ease both}
.anim-scale{animation:scaleUp .35s ease both}

/* ━━━ SITE HEADER ━━━ */
.ml-header{
  background:var(--bg-white);
  border-bottom:1px solid var(--border-light);
  padding:0 32px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  position:sticky;top:0;z-index:100;
  box-shadow:var(--shadow-sm);
}
.ml-logo{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);
  font-size:20px;font-weight:700;
  color:var(--text);text-decoration:none;
}
.ml-logo:hover{text-decoration:none;color:var(--text)}
.ml-logo svg{width:32px;height:32px}
.ml-header-nav{display:flex;align-items:center;gap:8px}
.ml-header-nav a,.ml-header-nav button{
  font-size:14px;font-weight:600;
  padding:8px 16px;border-radius:8px;
  border:none;background:transparent;
  color:var(--text-2);transition:all .15s;
}
.ml-header-nav a:hover,.ml-header-nav button:hover{
  background:var(--surface-2);color:var(--text);text-decoration:none;
}
.ml-nav-user{
  display:flex;align-items:center;gap:8px;
  padding:6px 14px 6px 10px;
  background:var(--accent-light);color:var(--accent-dark);
  border-radius:20px;font-size:13px;font-weight:600;
  border:none;cursor:pointer;
}
.ml-nav-user .ml-avatar{
  width:26px;height:26px;border-radius:50%;
  background:var(--accent);color:white;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
}

/* ━━━ LAYOUT ━━━ */
.ml-wrap{max-width:960px;margin:0 auto;padding:36px 24px;min-height:calc(100vh - 64px)}
.ml-footer{
  text-align:center;padding:32px 24px;
  color:var(--text-3);font-size:13px;
  border-top:1px solid var(--border-light);
  background:var(--bg-white);
}

/* ━━━ TYPOGRAPHY ━━━ */
.ml-display{font-family:var(--font-display);font-weight:700;color:var(--text);letter-spacing:-.01em;line-height:1.2}
.ml-display-xl{font-size:38px}
.ml-display-lg{font-size:28px}
.ml-display-md{font-size:22px}
.ml-display-sm{font-size:18px}
.ml-label{
  font-family:var(--font-mono);font-size:11px;
  text-transform:uppercase;letter-spacing:.1em;
  color:var(--text-3);font-weight:500;
}
.ml-label-accent{color:var(--accent)}
.ml-label-teal{color:var(--teal)}

/* ━━━ CARDS ━━━ */
.ml-card{
  background:var(--surface);
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  transition:all .2s;
}
.ml-card:hover{box-shadow:var(--shadow-md)}
.ml-card-clickable{cursor:pointer}
.ml-card-clickable:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* ━━━ BUTTONS ━━━ */
.ml-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:10px;
  font-size:14px;font-weight:700;
  border:none;cursor:pointer;
  transition:all .15s;text-decoration:none;
}
.ml-btn:hover{transform:translateY(-1px);text-decoration:none}
.ml-btn:active{transform:translateY(0)}
.ml-btn:disabled{opacity:.5;cursor:default;transform:none}
.ml-btn-primary{background:var(--accent);color:white}
.ml-btn-primary:hover{background:var(--accent-dark);color:white}
.ml-btn-teal{background:var(--teal);color:white}
.ml-btn-teal:hover{background:var(--teal-dark);color:white}
.ml-btn-green{background:var(--green);color:white}
.ml-btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text-2)}
.ml-btn-outline:hover{border-color:var(--text-3);color:var(--text)}
.ml-btn-ghost{background:transparent;color:var(--accent);padding:8px 12px}
.ml-btn-ghost:hover{background:var(--accent-light)}
.ml-btn-full{width:100%}
.ml-btn-lg{padding:14px 32px;font-size:15px;border-radius:12px}

/* ━━━ INPUTS ━━━ */
.ml-input{
  width:100%;padding:12px 16px;
  border:1.5px solid var(--border);
  border-radius:10px;background:var(--bg-white);
  color:var(--text);font-size:14px;
  font-family:var(--font);
  outline:none;transition:border-color .2s;
}
.ml-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}
.ml-input-code{font-family:var(--font-mono);letter-spacing:3px;text-transform:uppercase;text-align:center}
.ml-input-group{margin-bottom:16px}
.ml-input-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}
.ml-error-msg{color:var(--red);font-size:13px;margin-top:6px}

/* ━━━ HERO ━━━ */
.ml-hero{
  text-align:center;padding:56px 20px 48px;
  position:relative;
}
.ml-hero::before{
  content:'';position:absolute;top:-40px;left:50%;transform:translateX(-50%);
  width:600px;height:600px;
  background:radial-gradient(ellipse,rgba(37,99,235,.06) 0%,transparent 65%);
  pointer-events:none;
}
.ml-hero-sub{color:var(--text-2);font-size:16px;margin-top:10px;max-width:480px;margin-left:auto;margin-right:auto}
.ml-hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:20px;padding:8px 18px;
  background:var(--amber-light);color:var(--amber);
  border-radius:20px;font-size:13px;font-weight:700;
}

/* ━━━ STATS GRID ━━━ */
.ml-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin-bottom:36px}
.ml-stat{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius);padding:20px;text-align:center;
  box-shadow:var(--shadow-sm);
}
.ml-stat-val{font-family:var(--font-display);font-size:28px;font-weight:700;color:var(--text)}
.ml-stat-lbl{font-size:12px;color:var(--text-3);margin-top:2px}

/* ━━━ WORKBOOK GRID ━━━ */
.ml-section-title{font-family:var(--font-display);font-size:20px;font-weight:700;margin-bottom:18px}
.ml-book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px;margin-bottom:36px}

.ml-book-card{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius-xl);padding:28px;
  cursor:pointer;transition:all .25s;position:relative;overflow:hidden;
  text-decoration:none;color:var(--text);display:block;
  box-shadow:var(--shadow);
}
.ml-book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);text-decoration:none;color:var(--text)}
.ml-book-card-stripe{position:absolute;top:0;left:0;right:0;height:4px}
.ml-book-card-emoji{font-size:36px;margin-bottom:14px}
.ml-book-card-title{font-family:var(--font-display);font-size:17px;font-weight:700;line-height:1.3}
.ml-book-card-sub{font-size:13px;color:var(--text-3);margin-top:4px}
.ml-book-card-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.ml-badge{
  font-size:11px;font-weight:600;padding:4px 10px;
  border-radius:6px;background:var(--surface-2);color:var(--text-3);
}
.ml-badge-done{background:var(--green-light);color:var(--green)}
.ml-badge-accent{background:var(--accent-light);color:var(--accent)}

/* ━━━ EMPTY STATE ━━━ */
.ml-empty{
  text-align:center;padding:48px 24px;
  background:var(--surface);border:2px dashed var(--border);
  border-radius:var(--radius-xl);
}
.ml-empty-icon{font-size:40px;margin-bottom:10px}
.ml-empty-title{font-family:var(--font-display);font-size:18px;font-weight:700;margin-bottom:6px}
.ml-empty-text{font-size:14px;color:var(--text-3)}

/* ━━━ AUTH PAGES ━━━ */
.ml-auth{
  min-height:calc(100vh - 64px);
  display:flex;align-items:center;justify-content:center;
  padding:24px;
}
.ml-auth-box{
  background:var(--surface);
  border:1px solid var(--border-light);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-lg);
  padding:48px 40px;max-width:420px;width:100%;
}
.ml-auth-box h2{font-family:var(--font-display);font-size:26px;font-weight:700;margin-bottom:6px}
.ml-auth-box .ml-sub{color:var(--text-3);font-size:14px;margin-bottom:28px}
.ml-auth-divider{
  text-align:center;color:var(--text-3);font-size:13px;
  margin:20px 0;position:relative;
}
.ml-auth-divider::before,.ml-auth-divider::after{
  content:'';position:absolute;top:50%;
  width:calc(50% - 24px);height:1px;background:var(--border);
}
.ml-auth-divider::before{left:0}
.ml-auth-divider::after{right:0}
.ml-auth-link{text-align:center;font-size:14px;color:var(--text-3);margin-top:20px}
.ml-auth-link a{font-weight:600}

/* ━━━ DASHBOARD ━━━ */
.ml-dash-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;flex-wrap:wrap;gap:12px}
.ml-dash-greeting{font-family:var(--font-display);font-size:26px;font-weight:700}
.ml-dash-date{font-size:13px;color:var(--text-3);margin-top:2px}

/* ━━━ ACCESS GATE ━━━ */
.ml-gate{
  min-height:60vh;display:flex;
  align-items:center;justify-content:center;
}
.ml-gate-box{
  background:var(--surface);
  border:1px solid var(--border-light);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-lg);
  padding:48px 40px;max-width:440px;width:100%;text-align:center;
}
.ml-gate-box .ml-icon{font-size:48px;margin-bottom:12px}

/* ━━━ WORKBOOK DASHBOARD ━━━ */
.ml-wb-header{display:flex;gap:20px;align-items:center;margin-bottom:32px;flex-wrap:wrap}
.ml-wb-header .ml-emoji{font-size:48px}
.ml-wb-info{flex:1;min-width:200px}
.ml-wb-info h1{font-family:var(--font-display);font-size:24px;font-weight:700}
.ml-wb-info p{font-size:14px;color:var(--text-3);margin-top:2px}

/* ━━━ CHAPTER LIST ━━━ */
.ml-ch-list{display:flex;flex-direction:column;gap:8px}
.ml-ch-row{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius);padding:16px 20px;
  display:flex;align-items:center;gap:16px;
  cursor:pointer;transition:all .2s;box-shadow:var(--shadow-sm);
}
.ml-ch-row:hover{box-shadow:var(--shadow-md);transform:translateX(4px)}
.ml-ch-num{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;font-family:var(--font-mono);
  flex-shrink:0;
}
.ml-ch-info{flex:1;min-width:0}
.ml-ch-title{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ml-ch-tags{display:flex;gap:10px;margin-top:5px}
.ml-ch-tags span{font-size:12px}

/* ━━━ MODE CARDS ━━━ */
.ml-mode-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.ml-mode-card{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius-xl);padding:32px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.ml-mode-card .ml-stripe{position:absolute;top:0;left:0;right:0;height:4px}
.ml-mode-icon{font-size:40px;margin-bottom:14px}
.ml-mode-card h3{font-family:var(--font-display);font-size:18px;font-weight:700}
.ml-mode-card p{font-size:13px;color:var(--text-2);margin-top:8px;line-height:1.6}
.ml-mode-done{font-size:12px;font-weight:600;margin-top:12px}

/* ━━━ FLASHCARDS ━━━ */
.ml-progress-bar{height:4px;background:var(--surface-2);border-radius:2px;overflow:hidden;margin:16px 0 28px}
.ml-progress-fill{height:100%;border-radius:2px;transition:width .4s ease}
.ml-flashcard{
  background:var(--surface);border:2px solid var(--border-light);
  border-radius:var(--radius-xl);padding:48px 32px;
  min-height:280px;display:flex;flex-direction:column;
  justify-content:center;align-items:center;
  cursor:pointer;text-align:center;
  transition:all .3s;box-shadow:var(--shadow-md);
}
.ml-flashcard.flipped{border-color:var(--teal);background:var(--bg-warm)}
.ml-flashcard .ml-q{font-family:var(--font-display);font-size:20px;line-height:1.5;max-width:520px}
.ml-flashcard .ml-a{font-size:16px;line-height:1.7;max-width:520px;color:var(--text-2)}
.ml-flashcard .ml-tap{font-size:12px;color:var(--text-3);margin-top:28px}
.ml-card-nav{display:flex;gap:12px;margin-top:24px}
.ml-card-nav .ml-btn{flex:1}

/* ━━━ QUIZ ━━━ */
.ml-quiz-card{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius-xl);padding:32px;
  margin-top:24px;box-shadow:var(--shadow);
}
.ml-quiz-q{font-family:var(--font-display);font-size:17px;font-weight:600;line-height:1.5;margin-bottom:24px}
.ml-quiz-opts{display:flex;flex-direction:column;gap:10px}
.ml-quiz-opt{
  padding:14px 16px;border-radius:10px;
  border:1.5px solid var(--border);background:var(--bg-white);
  font-size:14px;text-align:left;transition:all .15s;
  font-family:var(--font);color:var(--text);display:block;width:100%;
  cursor:pointer;
}
.ml-quiz-opt:hover{border-color:var(--accent);background:var(--accent-light)}
.ml-quiz-opt .ml-letter{font-family:var(--font-mono);margin-right:10px;font-size:12px;opacity:.5;font-weight:600}
.ml-quiz-opt.selected{border-color:var(--accent);background:var(--accent-light);color:var(--accent-dark)}
.ml-quiz-opt.correct{border-color:var(--green);background:var(--green-light);color:var(--green)}
.ml-quiz-opt.wrong{border-color:var(--red);background:var(--red-light);color:var(--red)}
.ml-quiz-opt.locked{cursor:default}
.ml-quiz-opt.locked:hover{border-color:var(--border);background:var(--bg-white)}
.ml-quiz-actions{display:flex;justify-content:flex-end;margin-top:20px}
.ml-quiz-opt.selected{border-color:var(--accent);background:var(--accent-light);color:var(--accent-dark);font-weight:600}
.ml-quiz-opt.correct{border-color:var(--green);background:var(--green-light);color:var(--green);font-weight:600}
.ml-quiz-opt.wrong{border-color:var(--red);background:var(--red-light);color:var(--red);font-weight:600}

/* ━━━ RESULTS ━━━ */
.ml-results{text-align:center;padding-top:32px}
.ml-results h2{font-family:var(--font-display);font-size:26px;font-weight:700;margin-top:20px}
.ml-results .ml-sub{font-size:15px;color:var(--text-3);margin-top:6px}
.ml-results .ml-verdict{font-size:14px;font-weight:600;margin-top:8px}
.ml-review{text-align:left;margin-top:28px}
.ml-review-item{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius);padding:16px;margin-bottom:8px;
  border-left:4px solid transparent;
}
.ml-review-item.ok{border-left-color:var(--green)}
.ml-review-item.bad{border-left-color:var(--red)}
.ml-review-item p{font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text)}
.ml-review-item .ml-ans{font-size:12px}

/* ━━━ RING (SVG) ━━━ */
.ml-ring{transform:rotate(-90deg)}
.ml-ring-bg{fill:none;stroke:var(--surface-2)}
.ml-ring-fill{fill:none;stroke-linecap:round;transition:stroke-dashoffset .7s ease}
.ml-ring-text{font-family:var(--font-display);font-weight:700;fill:var(--text)}

/* ━━━ ACTIVITY ━━━ */
.ml-activity{
  background:var(--surface);border:1px solid var(--border-light);
  border-radius:var(--radius);padding:4px 16px;
  max-height:220px;overflow-y:auto;box-shadow:var(--shadow-sm);
}
.ml-activity-row{
  padding:10px 0;font-size:13px;
  display:flex;justify-content:space-between;align-items:center;
  border-bottom:1px solid var(--border-light);
}
.ml-activity-row:last-child{border-bottom:none}
.ml-activity-date{color:var(--text-3);font-size:11px;flex-shrink:0;margin-left:12px}

/* ━━━ BACK BUTTON ━━━ */
.ml-back{
  background:none;border:none;cursor:pointer;
  font-size:14px;font-weight:600;padding:0;
  margin-bottom:24px;color:var(--accent);
  display:inline-flex;align-items:center;gap:6px;
}
.ml-back:hover{text-decoration:underline}

/* ━━━ RESPONSIVE ━━━ */
@media(max-width:640px){
  .ml-display-xl{font-size:28px}
  .ml-display-lg{font-size:22px}
  .ml-book-grid{grid-template-columns:1fr}
  .ml-mode-grid{grid-template-columns:1fr}
  .ml-auth-box{padding:32px 24px}
  .ml-gate-box{padding:36px 24px}
  .ml-flashcard{padding:32px 20px;min-height:220px}
  .ml-header{padding:0 16px}
  .ml-wrap{padding:24px 16px}
}

body.admin-bar .ml-header{top:32px}
@media(max-width:782px){body.admin-bar .ml-header{top:46px}}