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

:root {
  --bg: #09090f;
  --surface: #12121c;
  --glass: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.08);
  --toefl: #6366f1;
  --toefl-light: #818cf8;
  --ppds: #8b5cf6;
  --ppds-light: #a78bfa;
  --gold: #f59e0b;
  --rose: #f43f5e;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --radius: 16px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* SCREEN SYSTEM */
.screen { display: none; }
.screen.active { display: block; }

/* GLASS */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ===================== LOGIN ===================== */
#loginScreen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
#loginScreen.active { display: flex; }

.login-bg {
  position: fixed; inset: 0; overflow: hidden; z-index: -1;
  background: radial-gradient(ellipse at 20% 50%, #1e1b4b 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, #2d1b4e 0%, transparent 60%),
              var(--bg);
}

.orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.4;
  animation: float 8s ease-in-out infinite;
}
.orb1 { width: 400px; height: 400px; background: var(--toefl); top: -100px; left: -100px; animation-delay: 0s; }
.orb2 { width: 300px; height: 300px; background: var(--ppds); bottom: -50px; right: -50px; animation-delay: -3s; }
.orb3 { width: 200px; height: 200px; background: var(--gold); top: 50%; left: 50%; animation-delay: -5s; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.login-card {
  border-radius: 24px; padding: 48px 40px;
  max-width: 480px; width: 90%; text-align: center;
  animation: slideUp 0.6s cubic-bezier(0.16,1,0.3,1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

.love-badge {
  display: inline-block; background: rgba(244,63,94,0.15);
  border: 1px solid rgba(244,63,94,0.3);
  color: #fb7185; border-radius: 99px;
  padding: 6px 16px; font-size: 13px; font-weight: 600;
  margin-bottom: 20px; letter-spacing: 0.5px;
}

.brand {
  font-family: 'Playfair Display', serif;
  font-size: 42px; font-weight: 700;
  background: linear-gradient(135deg, #a5b4fc, #f0abfc);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
}

.login-sub {
  color: var(--text-muted); font-size: 14px; line-height: 1.7;
  margin-bottom: 32px;
}

.input-group { display: flex; gap: 10px; margin-bottom: 12px; }

.input-group input {
  flex: 1; padding: 14px 18px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--glass-border);
  border-radius: 12px; color: var(--text);
  font-family: inherit; font-size: 14px;
  outline: none; transition: border-color 0.2s;
}
.input-group input:focus { border-color: var(--toefl-light); }
.input-group input::placeholder { color: #475569; }

.input-group button {
  padding: 14px 22px;
  background: linear-gradient(135deg, var(--toefl), var(--ppds));
  border: none; border-radius: 12px;
  color: white; font-family: inherit; font-size: 14px; font-weight: 700;
  cursor: pointer; transition: opacity 0.2s, transform 0.15s;
  white-space: nowrap;
}
.input-group button:hover { opacity: 0.85; transform: translateY(-1px); }

.error-msg { color: #f87171; font-size: 13px; min-height: 20px; margin-bottom: 8px; }
.login-hint { color: #334155; font-size: 12px; }

/* ===================== TOPNAV ===================== */
.topnav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  border-radius: 0; border-left: none; border-right: none; border-top: none;
}
.nav-brand { font-size: 14px; font-weight: 700; color: var(--text-muted); }
.nav-progress {
  font-size: 13px; font-weight: 700;
  background: linear-gradient(135deg, var(--toefl-light), var(--ppds-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

/* ===================== HERO ===================== */
.hero {
  padding: 80px 32px 60px;
  background: radial-gradient(ellipse at 50% 0%, rgba(99,102,241,0.12) 0%, transparent 70%);
  text-align: center;
}
.hero-badge {
  display: inline-block;
  background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3);
  color: var(--gold); border-radius: 99px;
  padding: 8px 20px; font-size: 13px; font-weight: 700;
  margin-bottom: 24px; letter-spacing: 0.5px;
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(36px, 6vw, 64px); line-height: 1.2;
  margin-bottom: 20px;
}
.gradient-text {
  background: linear-gradient(135deg, #a5b4fc, #f0abfc, #fb7185);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc {
  max-width: 580px; margin: 0 auto 40px;
  color: var(--text-muted); font-size: 16px; line-height: 1.8;
}
.hero-stats {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}
.stat-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 20px 28px; text-align: center;
  min-width: 110px;
}
.stat-num {
  display: block; font-size: 28px; font-weight: 800;
  background: linear-gradient(135deg, #a5b4fc, #f0abfc);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }

/* ===================== MAIN ===================== */
.portal-main { max-width: 1100px; margin: 0 auto; padding: 0 24px 80px; }

.section { margin-bottom: 64px; }

.section-title {
  font-size: 22px; font-weight: 700; margin-bottom: 24px;
  padding-bottom: 12px; border-bottom: 1px solid var(--glass-border);
}

/* GUIDE */
.guide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.guide-card {
  border-radius: 16px; padding: 24px; display: flex;
  align-items: flex-start; gap: 16px;
}
.guide-num {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--toefl), var(--ppds));
  font-size: 16px; font-weight: 800;
}
.guide-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.guide-card p strong { color: var(--text); }

/* PHASE HEADER */
.phase-header {
  border-radius: 20px; padding: 32px 36px; margin-bottom: 32px;
  display: flex; align-items: center; justify-content: space-between;
}
.toefl-phase { background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(99,102,241,0.05)); border: 1px solid rgba(99,102,241,0.25); }
.ppds-phase  { background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(139,92,246,0.05)); border: 1px solid rgba(139,92,246,0.25); }
.phase-badge {
  display: inline-block; border-radius: 8px;
  padding: 4px 12px; font-size: 11px; font-weight: 800;
  letter-spacing: 1.5px; margin-bottom: 8px;
  background: rgba(99,102,241,0.25); color: var(--toefl-light);
}
.ppds-badge { background: rgba(139,92,246,0.25); color: var(--ppds-light); }
.phase-title { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 700; margin-bottom: 6px; }
.phase-sub { color: var(--text-muted); font-size: 14px; }
.phase-icon { font-size: 52px; }

/* WEEK LABEL */
.week-label {
  font-size: 13px; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 1px;
  margin: 28px 0 16px; padding-left: 4px;
}

/* SESSION GRID */
.session-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-bottom: 8px; }

.session-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 20px; transition: transform 0.2s, border-color 0.2s;
  cursor: default;
}
.session-card:hover { transform: translateY(-3px); }
.session-card.done { border-color: rgba(34,197,94,0.4); background: rgba(34,197,94,0.05); }

.card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 12px; }
.card-num {
  font-size: 11px; font-weight: 800; letter-spacing: 1px;
  padding: 4px 10px; border-radius: 8px; color: var(--toefl-light);
  background: rgba(99,102,241,0.15);
}
.card-num.ppds-num { color: var(--ppds-light); background: rgba(139,92,246,0.15); }
.card-num.exam-num { color: var(--gold); background: rgba(245,158,11,0.15); }

.done-check {
  width: 24px; height: 24px; border-radius: 50%;
  border: 2px solid #334155; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s; font-size: 12px; color: transparent;
}
.session-card.done .done-check {
  background: #22c55e; border-color: #22c55e; color: white;
}

.card-title {
  font-size: 14px; font-weight: 700; margin-bottom: 8px; line-height: 1.4;
}
.card-tip {
  font-size: 12px; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px;
  padding: 10px 12px; background: rgba(255,255,255,0.03); border-radius: 10px;
  border-left: 2px solid var(--toefl);
}
.card-tip.ppds-tip { border-color: var(--ppds); }

.card-links { display: flex; gap: 8px; flex-wrap: wrap; }
.card-link {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 12px; border-radius: 10px;
  font-size: 12px; font-weight: 600;
  border: none; cursor: pointer;
  font-family: inherit; transition: opacity 0.2s, transform 0.15s;
}
.card-link:hover { opacity: 0.8; transform: translateY(-1px); }
.link-materi  { background: rgba(99,102,241,0.2); color: var(--toefl-light); }
.link-ringkas { background: rgba(16,185,129,0.2); color: #34d399; }
.link-tugas   { background: rgba(245,158,11,0.2); color: #fbbf24; }

/* LOVE SECTION */
.love-section {
  border-radius: 24px; padding: 48px 40px; text-align: center;
  background: linear-gradient(135deg, rgba(244,63,94,0.08), rgba(139,92,246,0.08)) !important;
  border-color: rgba(244,63,94,0.2) !important;
}
.love-title { font-family: 'Playfair Display', serif; font-size: 28px; margin-bottom: 20px; }
.love-text  { color: var(--text-muted); font-size: 15px; line-height: 1.8; max-width: 560px; margin: 0 auto 12px; }
.love-sign  { margin-top: 24px; font-size: 16px; color: #fb7185; }
.love-sign em { font-family: 'Playfair Display', serif; }

/* FOOTER */
.portal-footer {
  text-align: center; padding: 32px;
  color: #334155; font-size: 13px;
  border-top: 1px solid var(--glass-border);
}

/* RESPONSIVE */
@media (max-width: 600px) {
  .topnav { padding: 12px 16px; }
  .hero { padding: 48px 16px 40px; }
  .portal-main { padding: 0 16px 60px; }
  .phase-header { padding: 24px 20px; }
  .phase-icon { display: none; }
  .login-card { padding: 36px 24px; }
  .love-section { padding: 32px 20px; }
}

/* ===================== ANTI-PIRACY ===================== */
body { user-select: none; -webkit-user-select: none; }
input, textarea { user-select: text; -webkit-user-select: text; } /* Allow typing in inputs */

/* ===================== PDF MODAL ===================== */
.pdf-modal {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,0.85); backdrop-filter: blur(12px);
  align-items: center; justify-content: center; padding: 16px;
}
.pdf-modal.active { display: flex; }

.pdf-modal-inner {
  width: 100%; max-width: 900px; height: 90vh;
  display: flex; flex-direction: column;
  background: #13131f; border: 1px solid var(--glass-border);
  border-radius: 20px; overflow: hidden;
  animation: slideUp 0.3s cubic-bezier(0.16,1,0.3,1);
}

.pdf-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.pdf-modal-title {
  font-size: 14px; font-weight: 700; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 75%;
}
.pdf-modal-close {
  padding: 8px 16px; border-radius: 10px;
  background: rgba(244,63,94,0.15); border: 1px solid rgba(244,63,94,0.3);
  color: #fb7185; font-family: inherit; font-size: 13px; font-weight: 700;
  cursor: pointer; transition: background 0.2s; flex-shrink: 0;
}
.pdf-modal-close:hover { background: rgba(244,63,94,0.3); }

.pdf-wrapper {
  flex: 1; position: relative; overflow: hidden;
}
/* Transparent shield overlay blocks right-click & direct interaction on PDF */
.pdf-shield {
  position: absolute; inset: 0; z-index: 2;
  pointer-events: none; /* Allow scroll but block context menu */
}
#pdfFrame {
  width: 100%; height: 100%; border: none;
  display: block;
}

.pdf-modal-footer {
  padding: 10px 24px; border-top: 1px solid var(--glass-border);
  font-size: 11px; color: #334155; text-align: center; flex-shrink: 0;
}

@media (max-width: 600px) {
  .pdf-modal-inner { height: 95vh; border-radius: 16px; }
  .pdf-modal-header { padding: 12px 16px; }
}