/* =====================================================================
   Trang chủ: giới thiệu (khách) + trang chủ cá nhân (đã đăng nhập)
   Phong cách: hiện đại kiểu app + điểm xuyết nét vẽ tay
   ===================================================================== */
:root {
  --hl: rgba(255, 210, 63, .55);
  --glass: rgba(255, 255, 255, .72);
  --glass-border: rgba(255, 255, 255, .9);
  --blob1: #8b9bff; --blob2: #ffb27a; --blob3: #7fe0c8;
  --tile-shadow: 0 1px 2px rgba(20, 24, 40, .05), 0 12px 32px -12px rgba(40, 50, 120, .18);
  --hand: 'Patrick Hand', 'Mali', cursive;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --hl: rgba(255, 200, 60, .32);
    --glass: rgba(28, 31, 44, .72);
    --glass-border: rgba(255, 255, 255, .08);
    --blob1: #3a46b8; --blob2: #8a4a24; --blob3: #1f6b5c;
    --tile-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px -12px rgba(0, 0, 0, .5);
  }
}
:root[data-theme="dark"] {
  --hl: rgba(255, 200, 60, .32);
  --glass: rgba(28, 31, 44, .72);
  --glass-border: rgba(255, 255, 255, .08);
  --blob1: #3a46b8; --blob2: #8a4a24; --blob3: #1f6b5c;
  --tile-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px -12px rgba(0, 0, 0, .5);
}

body { overflow-x: hidden; }
/* Khách / đã đăng nhập */
body:not(.is-authed) .authed-only, .is-authed .guest-only { display: none !important; }
.nav-cta-in { display: inline-flex; align-items: center; gap: 8px; position: relative; }
.center { text-align: center; margin-top: 36px; }

/* Nền: lưới chấm + khối màu loang chuyển động chậm */
.bg-deco { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
  background-image: radial-gradient(color-mix(in srgb, var(--text) 9%, transparent) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, #000 0, #000 55%, transparent 100%); }
.blob { position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%; filter: blur(70px); opacity: .45; animation: drift 22s ease-in-out infinite alternate; }
.b1 { background: var(--blob1); top: -18vmax; left: -10vmax; }
.b2 { background: var(--blob2); top: -8vmax; right: -16vmax; animation-delay: -7s; opacity: .35; }
.b3 { background: var(--blob3); top: 40vh; left: 30vw; width: 30vmax; height: 30vmax; animation-delay: -14s; opacity: .25; }
@keyframes drift { to { transform: translate(6vmax, 4vmax) scale(1.08); } }

/* Thanh trên */
.home-header { transition: box-shadow .2s, background .2s; border-bottom-color: transparent; background: transparent; backdrop-filter: none; }
.home-header.scrolled { background: color-mix(in srgb, var(--bg) 80%, transparent); backdrop-filter: blur(14px) saturate(1.4); border-bottom-color: var(--border); }
.home-header .nav-cta { align-items: center; }
.icon-btn { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border); background: var(--surface); color: var(--text); display: grid; place-items: center; cursor: pointer; transition: transform .2s; }
.icon-btn:hover { transform: rotate(18deg); }
.icon-btn .i-moon { display: none; }
:root[data-theme="dark"] .icon-btn .i-sun { display: none; }
:root[data-theme="dark"] .icon-btn .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-btn .i-sun { display: none; }
  :root:not([data-theme="light"]) .icon-btn .i-moon { display: block; }
}
.me-chip { display: inline-flex; align-items: center; gap: 8px; padding: 4px 10px 4px 4px; border-radius: 99px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-weight: 600; font-size: 14px; cursor: pointer; }
.me-chip:hover { border-color: var(--primary); }
.me-chip-name { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.me-ava { width: 30px; height: 30px; border-radius: 50%; flex: none; display: grid; place-items: center; overflow: hidden; color: #fff; font-weight: 700; font-size: 13px; background: linear-gradient(135deg, #4353e0, #9b51e0); }
.me-ava img { width: 100%; height: 100%; object-fit: cover; }
.me-menu { position: absolute; right: 0; top: calc(100% + 8px); min-width: 230px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); padding: 6px; z-index: 30; animation: pop .16s ease-out; }
.me-menu[hidden] { display: none; }
.me-menu .mm-head { padding: 10px 12px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.me-menu .mm-head b { display: block; }
.me-menu .mm-head small { color: var(--muted); word-break: break-all; }
.me-menu a, .me-menu button { display: flex; width: 100%; gap: 10px; align-items: center; padding: 9px 12px; border-radius: 9px; color: var(--text); font: inherit; font-size: 14px; background: none; border: 0; cursor: pointer; text-align: left; }
.me-menu a:hover, .me-menu button:hover { background: var(--surface-2); text-decoration: none; }
.me-menu .danger { color: var(--danger); }
@keyframes pop { from { opacity: 0; transform: translateY(-6px) scale(.98); } }
@media (max-width: 760px) { .me-chip-name, .hide-xs { display: none !important; } }

/* Hiệu ứng hiện dần khi cuộn (chỉ khi có JS) */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1); transition-delay: calc(var(--i, 0) * 90ms); }
.js .reveal.in { opacity: 1; transform: none; }

/* Gạch bút dạ quang */
.hl { position: relative; white-space: nowrap; background: linear-gradient(transparent 58%, var(--hl) 58%, var(--hl) 92%, transparent 92%) no-repeat 0 0 / 0% 100%; transition: background-size 1s .5s cubic-bezier(.6, 0, .2, 1); }
.hl.in, .in .hl, .no-js .hl, html:not(.js) .hl { background-size: 100% 100%; }

/* ================= Hero (khách) ================= */
.hero2 { padding: 56px 0 40px; }
.hero2-in { display: grid; grid-template-columns: 1fr 1.05fr; gap: 40px; align-items: center; }
.hpill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 10px; border-radius: 99px; background: var(--glass); border: 1px solid var(--border); font-size: 13.5px; font-weight: 600; color: var(--text); box-shadow: var(--tile-shadow); }
.hpill-dot { width: 8px; height: 8px; border-radius: 50%; background: #1f9d63; box-shadow: 0 0 0 0 rgba(31, 157, 99, .6); animation: ping 2s infinite; }
@keyframes ping { 70% { box-shadow: 0 0 0 8px rgba(31, 157, 99, 0); } 100% { box-shadow: 0 0 0 0 rgba(31, 157, 99, 0); } }
.hero2 h1 { font-size: clamp(34px, 5.4vw, 58px); letter-spacing: -.03em; line-height: 1.12; margin: 20px 0 18px; font-weight: 800; }
.rotator { color: var(--primary); display: inline-block; min-width: 2ch; }
.rotator::after { content: ''; display: inline-block; width: 3px; height: .9em; margin-left: 3px; vertical-align: -.08em; background: currentColor; border-radius: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.lead { font-size: 18px; color: var(--muted); max-width: 540px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 6px; }
.btn-glow { position: relative; box-shadow: 0 10px 30px -8px color-mix(in srgb, var(--primary) 70%, transparent); background: linear-gradient(135deg, var(--primary), #7b4fe0); }
.btn-glow:hover { background: linear-gradient(135deg, var(--primary-600), #6a3fd0); }
.magnetic { transition: transform .25s cubic-bezier(.2, .7, .2, 1), background .15s, box-shadow .2s; will-change: transform; }
.doodle-note { display: flex; align-items: flex-end; gap: 6px; margin: 2px 0 0 120px; color: var(--accent); font-family: var(--hand); font-size: 21px; transform: rotate(-3deg); }
.doodle-note svg { transform: scaleX(-1) translateY(-8px); }
.draw { stroke-dasharray: 80; stroke-dashoffset: 80; }
.in .draw, html:not(.js) .draw { animation: drawline .9s .9s forwards ease-out; }
@keyframes drawline { to { stroke-dashoffset: 0; } }
.hero-trust { display: flex; flex-wrap: wrap; gap: 8px 20px; padding: 0; margin: 22px 0 0; list-style: none; color: var(--muted); font-size: 14px; }
.hero-trust li::before { content: '✓'; color: var(--success); font-weight: 800; margin-right: 6px; }

/* Minh họa hero: laptop + điện thoại + thẻ nổi */
.hero2-art { position: relative; height: 520px; }
.device, .float-chip, .sticker { position: absolute; transition: transform .35s cubic-bezier(.2, .7, .2, 1); }
.laptop { left: 0; top: 74px; width: 88%; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--tile-shadow), 0 30px 60px -30px rgba(40, 50, 120, .35); padding: 14px; }
.dev-bar { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; font-size: 12px; font-weight: 700; color: var(--muted); }
.dev-bar i { width: 10px; height: 10px; border-radius: 50%; background: #ff6159; }
.dev-bar i:nth-child(2) { background: #ffbd2e; } .dev-bar i:nth-child(3) { background: #28c941; }
.dev-bar span { margin-left: auto; background: var(--primary-soft); color: var(--primary); padding: 2px 10px; border-radius: 99px; }
.wk { display: grid; grid-template-columns: 36px repeat(5, 1fr); grid-auto-rows: 38px; gap: 5px; font-size: 11.5px; }
.wk .d { text-align: center; font-weight: 700; color: var(--muted); align-self: center; }
.wk .t { color: var(--muted); font-size: 10.5px; }
.wk .c { grid-row: span var(--r, 1); background: color-mix(in srgb, var(--c) 16%, var(--surface)); border-left: 3px solid var(--c); color: color-mix(in srgb, var(--c) 75%, var(--text)); border-radius: 7px; padding: 4px 6px; font-weight: 700; line-height: 1.2; overflow: hidden; }
.wk .c small { display: block; font-weight: 500; opacity: .8; font-size: 10px; }
.js .wk .c { opacity: 0; transform: scale(.85); }
.in .wk .c { animation: cellin .45s calc(.4s + var(--d) * 60ms) forwards cubic-bezier(.3, 1.4, .5, 1); }
@keyframes cellin { to { opacity: 1; transform: none; } }
.phone { right: 0; top: 150px; width: 200px; background: var(--surface); border: 6px solid #1b1f2e; border-radius: 30px; padding: 22px 12px 14px; box-shadow: 0 30px 60px -20px rgba(20, 24, 60, .45); }
.ph-notch { position: absolute; top: 6px; left: 50%; width: 60px; height: 14px; margin-left: -30px; background: #1b1f2e; border-radius: 99px; }
.ph-day { margin: 4px 2px 10px; font-size: 12px; color: var(--muted); display: flex; flex-direction: column; }
.ph-day b { font-size: 18px; color: var(--text); }
.ph-item { position: relative; border-radius: 10px; padding: 8px 10px 8px 12px; margin-bottom: 7px; background: var(--surface-2); font-size: 12px; overflow: hidden; }
.ph-item::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c); }
.ph-item b { display: block; font-size: 13px; }
.ph-item span { color: var(--muted); }
.ph-item.now { background: color-mix(in srgb, var(--c) 16%, var(--surface)); }
.ph-item em { position: absolute; right: 8px; top: 8px; font-style: normal; font-size: 10px; font-weight: 700; color: #fff; background: var(--c); padding: 1px 7px; border-radius: 99px; animation: pulse 1.6s infinite; }
.ph-item.done b { text-decoration: line-through; opacity: .6; }
@keyframes pulse { 50% { opacity: .55; } }
.float-chip { display: flex; gap: 10px; align-items: center; background: var(--glass); backdrop-filter: blur(12px); border: 1px solid var(--glass-border); border-radius: 14px; padding: 10px 14px; font-size: 13px; box-shadow: var(--tile-shadow); white-space: nowrap; animation: bob 5s ease-in-out infinite; }
.float-chip small { display: block; color: var(--muted); font-size: 11.5px; }
.chip-ico { font-size: 20px; }
.chip-next { left: -10px; top: 0; }
.chip-task { left: 8%; bottom: 18px; animation-delay: -1.5s; }
.chip-gpa { right: 200px; top: 4px; animation-delay: -3s; }
.sticker { font-size: 30px; filter: drop-shadow(0 4px 6px rgba(0, 0, 0, .15)); animation: bob 6s ease-in-out infinite; }
.st1 { right: 18px; top: 60px; animation-delay: -2s; }
.st2 { left: 46%; bottom: -4px; animation-delay: -4s; }
.st3 { right: 210px; bottom: 60px; }
@keyframes bob { 50% { translate: 0 -8px; } }

/* Số liệu */
.stats-strip { padding: 10px 0 30px; }
.stats-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.hstat { background: var(--glass); backdrop-filter: blur(10px); border: 1px solid var(--border); border-radius: 18px; padding: 20px; text-align: center; }
.hstat b { display: block; font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; letter-spacing: -.02em; background: linear-gradient(135deg, var(--primary), #9b51e0); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.hstat span { color: var(--muted); font-size: 14px; }

/* Tiêu đề mục */
.section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(27px, 3.6vw, 40px); letter-spacing: -.02em; font-weight: 800; }
.section-head p { color: var(--muted); font-size: 17px; margin: 0; }
.section-head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; text-align: left; max-width: none; flex-wrap: wrap; }
.section-head-row h2 { margin: 0; }
.kicker { display: inline-flex; align-items: center; gap: 8px; font-family: var(--hand); font-size: 22px; color: var(--accent); transform: rotate(-2deg); margin-bottom: 4px; }
.new-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1.4s infinite; }
.section-tint { background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--primary) 6%, transparent) 30%, color-mix(in srgb, var(--primary) 6%, transparent) 70%, transparent); }

/* ================= Bento tính năng ================= */
.bento { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  grid-template-areas: "week week parity parity" "week week gpa attend" "tasks tasks class free" "m1 m2 m3 m4"; }
.tile { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 22px; box-shadow: var(--tile-shadow); overflow: hidden; transition: transform .3s cubic-bezier(.2, .7, .2, 1), box-shadow .3s, border-color .3s; }
.tile:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }
.tile h3 { font-size: 18px; margin: 8px 0 6px; }
.tile p { color: var(--muted); margin: 0; font-size: 14.5px; }
.tile-ico { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--surface-2); font-size: 21px; }
.t-week { grid-area: week; display: flex; flex-direction: column; gap: 18px; background: linear-gradient(160deg, color-mix(in srgb, var(--primary) 9%, var(--surface)), var(--surface) 60%); }
.t-parity { grid-area: parity; display: flex; gap: 18px; align-items: center; }
.t-gpa { grid-area: gpa; } .t-attend { grid-area: attend; }
.t-tasks { grid-area: tasks; display: flex; gap: 18px; align-items: center; }
.t-class { grid-area: class; } .t-free { grid-area: free; }
.t-mini:nth-of-type(8) { grid-area: m1; } .t-mini:nth-of-type(9) { grid-area: m2; } .t-mini:nth-of-type(10) { grid-area: m3; } .t-mini:nth-of-type(11) { grid-area: m4; }
.t-mini { padding: 18px; } .t-mini h3 { font-size: 16px; }
.tile-txt { flex: 1 1 0; min-width: 0; }
.mini-week { flex: 1; min-height: 180px; display: grid; grid-template-columns: repeat(5, 1fr); grid-template-rows: repeat(6, 1fr); gap: 6px; padding: 12px; border-radius: 14px; background: var(--surface); border: 1px dashed var(--border); }
.mini-week i { grid-column: var(--x); grid-row: var(--y) / span var(--h); border-radius: 8px; background: var(--c); opacity: .9; }
.js .mini-week i { transform: scaleY(0); transform-origin: top; }
.in .mini-week i { animation: grow .5s calc(var(--d) * 70ms + .2s) forwards cubic-bezier(.3, 1.3, .5, 1); }
@keyframes grow { to { transform: none; } }
.tchips { display: flex; flex-wrap: wrap; gap: 8px; flex: 0 0 44%; }
.tchips span { padding: 6px 12px; border-radius: 99px; background: var(--primary-soft); color: var(--primary); font-weight: 600; font-size: 13px; }
.tchips .off { background: var(--danger-soft); color: var(--danger); text-decoration: line-through; text-decoration-thickness: 2px; }
.tchips .plus { background: var(--success-soft); color: var(--success); }
.ring { position: relative; width: 84px; height: 84px; margin: 10px 0; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke: var(--surface-2); stroke-width: 5; }
.ring .ring-val { stroke: var(--primary); stroke-linecap: round; stroke-dasharray: 100; stroke-dashoffset: 100; transition: stroke-dashoffset 1.4s .3s cubic-bezier(.3, 0, .2, 1); }
.in .ring .ring-val, html:not(.js) .ring .ring-val { stroke-dashoffset: calc(100 - var(--p)); }
.ring b { position: absolute; inset: 0; display: grid; place-items: center; font-size: 19px; font-weight: 800; }
.bar { height: 12px; border-radius: 99px; background: var(--surface-2); margin: 22px 0 18px; overflow: hidden; position: relative; }
.bar::after { content: '20%'; position: absolute; left: 20%; top: -2px; bottom: -2px; border-left: 2px dashed var(--danger); }
.bar i { display: block; height: 100%; width: 0; border-radius: 99px; background: linear-gradient(90deg, var(--success), var(--warning)); transition: width 1.2s .4s cubic-bezier(.3, 0, .2, 1); }
.in .bar i, html:not(.js) .bar i { width: var(--w); }
.checks { list-style: none; margin: 0; padding: 0; flex: 0 0 50%; display: grid; gap: 8px; }
.checks li { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 10px; background: var(--surface-2); font-size: 13.5px; font-weight: 500; }
.checks li::before { content: ''; flex: none; width: 18px; height: 18px; border-radius: 6px; border: 2px solid var(--border); transition: all .3s calc(var(--d) * .35s + .4s); }
.checks li em { margin-left: auto; font-style: normal; font-size: 12px; color: var(--danger); font-weight: 700; }
.in .checks li:not(.todo)::before { background: var(--success) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center / 12px no-repeat; border-color: var(--success); }
.avas { display: flex; margin: 14px 0; }
.avas i { width: 36px; height: 36px; border-radius: 50%; background: var(--c); color: #fff; display: grid; place-items: center; font-style: normal; font-weight: 700; font-size: 14px; border: 3px solid var(--surface); margin-left: -10px; transition: margin .3s; }
.avas i:first-child { margin-left: 0; }
.avas .more { background: var(--surface-2); color: var(--muted); font-size: 12px; }
.tile:hover .avas i { margin-left: -4px; }
.tile:hover .avas i:first-child { margin-left: 0; }
.free { position: relative; height: 54px; margin: 14px 0; display: grid; gap: 4px; }
.free i { display: block; height: 100%; margin-left: var(--a); width: calc(var(--b) - var(--a)); background: color-mix(in srgb, var(--muted) 28%, transparent); border-radius: 4px; }
.free-ok { position: absolute; top: -4px; bottom: -4px; left: var(--a); width: calc(var(--b) - var(--a)); border: 2px solid var(--success); background: color-mix(in srgb, var(--success) 18%, transparent); border-radius: 6px; animation: pulse 2s infinite; }

/* ================= Học sinh / sinh viên ================= */
.aud { max-width: 900px; margin: 0 auto; }
.aud-seg { position: relative; display: grid; grid-template-columns: 1fr 1fr; width: min(360px, 100%); margin: 0 auto 26px; padding: 5px; border-radius: 99px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--tile-shadow); }
.aud-seg button { position: relative; z-index: 1; padding: 10px; border: 0; background: none; font: inherit; font-weight: 700; color: var(--muted); cursor: pointer; border-radius: 99px; transition: color .3s; }
.aud-seg button[aria-selected="true"] { color: #fff; }
.aud-thumb { position: absolute; top: 5px; bottom: 5px; left: 5px; width: calc(50% - 5px); border-radius: 99px; background: linear-gradient(135deg, var(--primary), #7b4fe0); transition: transform .4s cubic-bezier(.3, 1.3, .5, 1); }
.aud[data-aud="sv"] .aud-thumb { transform: translateX(100%); }
.aud-panels { display: grid; }
.aud-panel { grid-area: 1 / 1; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 28px; box-shadow: var(--tile-shadow); transition: opacity .4s, transform .4s; }
.aud[data-aud="hs"] [data-p="sv"], .aud[data-aud="sv"] [data-p="hs"] { opacity: 0; transform: translateY(12px) scale(.98); pointer-events: none; visibility: hidden; }
.aud-panel h3 { font-size: 22px; }
.ticks { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 10px; }
.ticks li { display: flex; gap: 10px; }
.ticks li::before { content: '✓'; flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: var(--success-soft); color: var(--success); font-weight: 800; font-size: 12px; }
.period-card { background: var(--surface-2); border-radius: 16px; padding: 16px; font-size: 13.5px; display: grid; gap: 7px; }
.period-card p { display: flex; justify-content: space-between; margin: 0 0 4px; }
.period-card p span { color: var(--muted); }
.period-card div { display: grid; grid-template-columns: 70px 1fr; gap: 10px; align-items: center; }
.period-card div span { color: var(--muted); font-size: 12px; font-weight: 600; }
.period-card i { font-style: normal; font-weight: 600; padding: 7px 10px; border-radius: 8px; background: color-mix(in srgb, var(--c) 16%, var(--surface)); border-left: 3px solid var(--c); }

/* ================= Mẫu thời khóa biểu ================= */
.themes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding: 10px 0; }
.th { margin: 0; text-align: center; }
.th figcaption { margin-top: 12px; font-weight: 700; }
.th-paper { position: relative; aspect-ratio: 3 / 4; border-radius: 14px; padding: 18px 14px; display: grid; grid-template-rows: auto repeat(4, 1fr); gap: 8px; box-shadow: var(--tile-shadow), 0 20px 40px -20px rgba(0, 0, 0, .35); transition: transform .4s cubic-bezier(.2, .7, .2, 1); }
.th:nth-child(1) .th-paper { transform: rotate(-4deg); } .th:nth-child(2) .th-paper { transform: rotate(2deg); }
.th:nth-child(3) .th-paper { transform: rotate(-2deg); } .th:nth-child(4) .th-paper { transform: rotate(3deg); }
.th:hover .th-paper { transform: rotate(0) translateY(-8px) scale(1.03); }
.th-paper b { font-size: 17px; }
.th-paper i { border-radius: 8px; }
.th-st { position: absolute; right: 10px; top: 8px; font-size: 22px; }
.th-vetay .th-paper { background: #fffdf6 linear-gradient(#e8eefc 1px, transparent 1px) 0 0 / 100% 18px; color: #2b3a67; font-family: var(--hand); border: 2px dashed #b8c4e8; }
.th-vetay .th-paper b { font-size: 22px; text-decoration: underline wavy #ff8a3d; text-underline-offset: 5px; }
.th-vetay i { border: 2px solid #2b3a67; } .th-vetay i:nth-of-type(1) { background: #ffe3a3; } .th-vetay i:nth-of-type(2) { background: #c9f0dc; } .th-vetay i:nth-of-type(3) { background: #ffd0dc; } .th-vetay i:nth-of-type(4) { background: #d4dcff; }
.th-pastel .th-paper { background: #fff6ee; color: #6b4f4f; } .th-pastel i { border-radius: 14px; }
.th-pastel i:nth-of-type(1) { background: #ffd6e0; } .th-pastel i:nth-of-type(2) { background: #d7f2e4; } .th-pastel i:nth-of-type(3) { background: #fff1c1; } .th-pastel i:nth-of-type(4) { background: #dfe3ff; }
.th-bangphan .th-paper { background: #2f4f3e; color: #f4f1e8; border: 8px solid #8a5a34; font-family: 'Pangolin', var(--hand); }
.th-bangphan i { border: 2px dashed rgba(255, 255, 255, .55); } .th-bangphan i:nth-of-type(2n) { border-color: #ffd98a; }
.th-toigian .th-paper { background: #fff; color: #111; border: 1px solid #ddd; letter-spacing: .08em; }
.th-toigian .th-paper b { font-size: 14px; } .th-toigian i { border: 1.5px solid #111; border-radius: 2px; } .th-toigian i:nth-of-type(odd) { background: #f2f2f2; }

/* ================= 3 bước ================= */
.steps3 { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.steps3::before { content: ''; position: absolute; top: 27px; left: 16%; right: 16%; border-top: 3px dashed color-mix(in srgb, var(--primary) 45%, transparent); transform: scaleX(0); transform-origin: left; transition: transform 1.4s .3s cubic-bezier(.6, 0, .2, 1); }
.steps3.in::before, html:not(.js) .steps3::before { transform: none; }
.steps3 li { position: relative; text-align: center; padding: 0 10px; }
.steps3 .num { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 18px; background: linear-gradient(135deg, var(--primary), #7b4fe0); color: #fff; font-size: 22px; font-weight: 800; box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--primary) 70%, transparent); transform: rotate(-6deg); position: relative; }
.steps3 li:nth-child(2) .num { transform: rotate(5deg); background: linear-gradient(135deg, #ff8a3d, #e0457b); }
.steps3 li:nth-child(3) .num { transform: rotate(-3deg); background: linear-gradient(135deg, #1f9d63, #0ea5b7); }
.steps3 p { color: var(--muted); margin: 0; }

/* ================= Blog ================= */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.post-card { display: flex; flex-direction: column; gap: 8px; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 12px 12px 18px; color: var(--text); box-shadow: var(--tile-shadow); transition: transform .3s, border-color .3s; }
.post-card:hover { text-decoration: none; transform: translateY(-4px); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }
.post-card img, .post-ph { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 12px; background: var(--surface-2); }
.post-ph-0 { background: linear-gradient(135deg, #8b9bff, #c3a6ff); } .post-ph-1 { background: linear-gradient(135deg, #ffb27a, #ff8fab); } .post-ph-2 { background: linear-gradient(135deg, #7fe0c8, #8bd3ff); }
.post-card strong, .post-meta, .post-ex { padding: 0 6px; }
.post-card strong { font-size: 16.5px; line-height: 1.35; }
.post-meta { font-size: 12.5px; color: var(--primary); font-weight: 600; }
.post-ex { color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Về Lịch Học (đoạn văn cho Google đọc) */
.about-in { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.about-txt { color: var(--muted); font-size: 16px; line-height: 1.75; }
.about-txt b { color: var(--text); font-weight: 600; }
@media (max-width: 860px) { .about-in { grid-template-columns: 1fr; gap: 16px; } }

/* Hỏi đáp */
.faq details { border-radius: 14px; padding: 16px 20px; transition: border-color .2s, box-shadow .2s; }
.faq details[open] { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: var(--tile-shadow); }
.faq summary { list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); font-weight: 700; transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); background: var(--primary); color: #fff; }

/* CTA cuối trang */
.cta2 { position: relative; overflow: hidden; text-align: center; color: #fff; border-radius: 28px; padding: 60px 24px; background: linear-gradient(135deg, #4353e0 0%, #7b4fe0 55%, #e0457b 120%); box-shadow: 0 30px 60px -30px rgba(67, 83, 224, .7); }
.cta2 h2 { font-size: clamp(26px, 3.6vw, 40px); font-weight: 800; position: relative; }
.cta2 p { opacity: .9; font-size: 17px; position: relative; }
.btn-white { background: #fff; color: #3442c4; position: relative; box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .4); }
.btn-white:hover { background: #f1f2ff; }
.cta-float { position: absolute; font-size: 38px; opacity: .85; animation: bob 5s ease-in-out infinite; }
.f1 { left: 7%; top: 22%; } .f2 { right: 9%; top: 18%; animation-delay: -2s; } .f3 { left: 14%; bottom: 14%; animation-delay: -3s; } .f4 { right: 15%; bottom: 16%; animation-delay: -1s; }
.confetti { position: absolute; top: 50%; left: 50%; width: 9px; height: 14px; border-radius: 2px; pointer-events: none; animation: conf 1.4s cubic-bezier(.2, .6, .4, 1) forwards; }
@keyframes conf { to { transform: translate(var(--x), var(--y)) rotate(var(--r)); opacity: 0; } }

/* Chân trang */
.home-footer { padding: 44px 0 20px; }
.home-footer .foot-in { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.foot-brand { max-width: 320px; }
.foot-brand p { margin: 12px 0 0; }
.foot-links { display: flex; gap: 48px; flex-wrap: wrap; }
.foot-links div { display: flex; flex-direction: column; gap: 8px; }
.foot-links b { color: var(--text); }
.foot-links a { color: var(--muted); }
.home-footer .foot-bottom { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--border); }

/* ================= Trang chủ cá nhân ================= */
.me { padding: 28px 0 10px; }
.glass { background: var(--glass); backdrop-filter: blur(16px) saturate(1.3); border: 1px solid var(--glass-border); border-radius: 24px; box-shadow: var(--tile-shadow); }
.me-top { display: grid; grid-template-columns: 1fr 340px; gap: 20px; }
.me-hello { padding: 28px; }
.me-date { margin: 0; color: var(--muted); font-weight: 600; font-size: 14px; }
.me-hello h1 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -.02em; margin: 6px 0 6px; font-weight: 800; }
.wave { display: inline-block; transform-origin: 70% 80%; animation: wave 2.2s 1s ease-in-out 2; }
@keyframes wave { 0%, 60%, 100% { transform: none; } 10%, 30% { transform: rotate(16deg); } 20%, 40% { transform: rotate(-8deg); } }
.me-summary { color: var(--muted); font-size: 16px; margin: 0 0 18px; }
.up-card { position: relative; display: flex; gap: 16px; align-items: center; padding: 18px; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); overflow: hidden; }
.up-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--c, var(--primary)); }
.up-when { flex: none; text-align: center; min-width: 86px; padding: 8px 10px; border-radius: 14px; background: color-mix(in srgb, var(--c, var(--primary)) 14%, var(--surface)); color: color-mix(in srgb, var(--c, var(--primary)) 80%, var(--text)); }
.up-when b { display: block; font-size: 24px; font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums; }
.up-when small { font-size: 12px; font-weight: 600; }
.up-info { min-width: 0; flex: 1; }
.up-label { font-size: 12.5px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.up-info h3 { font-size: 19px; margin: 2px 0 4px; }
.up-info p { margin: 0; color: var(--muted); font-size: 14px; }
.up-live { color: var(--danger); }
.up-live::before { content: ''; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--danger); margin-right: 6px; animation: pulse 1.2s infinite; }
.up-prog { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--surface-2); }
.up-prog i { display: block; height: 100%; background: var(--c, var(--primary)); transition: width 1s; }
.up-empty { font-size: 15px; color: var(--muted); }
.quick { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 16px; }
.quick-btn { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 8px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); color: var(--text); font-weight: 600; font-size: 13.5px; text-align: center; transition: transform .2s, border-color .2s; }
.quick-btn span { font-size: 24px; transition: transform .3s cubic-bezier(.3, 1.5, .5, 1); }
.quick-btn:hover { text-decoration: none; transform: translateY(-3px); border-color: var(--primary); }
.quick-btn:hover span { transform: scale(1.2) rotate(-8deg); }

.me-profile { padding: 24px; display: flex; flex-direction: column; gap: 14px; position: relative; overflow: hidden; }
.me-profile::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 84px; background: linear-gradient(135deg, #4353e0, #9b51e0 60%, #ff8a3d); opacity: .9; }
.pf-head { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px; padding-top: 28px; }
.pf-ava { width: 84px; height: 84px; border-radius: 50%; border: 4px solid var(--surface); overflow: hidden; display: grid; place-items: center; font-size: 30px; font-weight: 800; color: #fff; background: linear-gradient(135deg, #4353e0, #e0457b); box-shadow: var(--tile-shadow); }
.pf-ava img { width: 100%; height: 100%; object-fit: cover; }
.pf-head h2 { font-size: 19px; margin: 8px 0 0; }
.pf-sub { color: var(--muted); font-size: 13.5px; word-break: break-all; }
.pf-badges { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
.pf-badge { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 99px; background: var(--primary-soft); color: var(--primary); }
.pf-badge.warn { background: var(--warning-soft); color: var(--warning); }
.pf-badge.ok { background: var(--success-soft); color: var(--success); }
.pf-rows { display: grid; gap: 8px; margin: 0; font-size: 14px; }
.pf-rows div { display: flex; justify-content: space-between; gap: 12px; }
.pf-rows dt { color: var(--muted); }
.pf-rows dd { margin: 0; font-weight: 600; text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pf-meter p { display: flex; justify-content: space-between; font-size: 13px; margin: 0 0 6px; color: var(--muted); }
.pf-meter p b { color: var(--text); }
.pf-meter > span { display: block; height: 8px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.pf-meter > span i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--primary), #9b51e0); width: 0; transition: width 1.2s .5s cubic-bezier(.3, 0, .2, 1); }
.pf-actions { display: flex; gap: 8px; margin-top: auto; }
.pf-actions .btn { flex: 1; }

.me-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 20px 0; }
.mstat { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 18px; box-shadow: var(--tile-shadow); color: var(--text); overflow: hidden; transition: transform .25s; }
a.mstat:hover { text-decoration: none; transform: translateY(-3px); }
.mstat-ico { position: absolute; right: 14px; top: 14px; font-size: 26px; opacity: .9; }
.mstat-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.mstat b { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.02em; margin: 4px 0 2px; font-variant-numeric: tabular-nums; }
.mstat small { color: var(--muted); font-size: 12.5px; }
.mstat small.bad { color: var(--danger); font-weight: 700; }
.mstat .mini-bar { height: 6px; border-radius: 99px; background: var(--surface-2); margin-top: 10px; overflow: hidden; }
.mstat .mini-bar i { display: block; height: 100%; background: var(--c, var(--primary)); border-radius: 99px; width: 0; transition: width 1.2s .4s cubic-bezier(.3, 0, .2, 1); }

#meSyncHint .sync-hint { margin: 0 0 20px; border-radius: 20px; }
.me-cols { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; }
.hpanel { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 22px; box-shadow: var(--tile-shadow); }
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.panel-head h2 { font-size: 18px; margin: 0; }
.panel-head a { font-size: 14px; font-weight: 600; white-space: nowrap; }
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ''; position: absolute; left: 58px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.tl { position: relative; display: grid; grid-template-columns: 50px 1fr; gap: 22px; padding: 6px 0; }
.tl-time { text-align: right; font-weight: 700; font-size: 14px; font-variant-numeric: tabular-nums; }
.tl-time small { display: block; color: var(--muted); font-weight: 500; font-size: 12px; }
.tl::before { content: ''; position: absolute; left: 53px; top: 14px; width: 12px; height: 12px; border-radius: 50%; background: var(--surface); border: 3px solid var(--c); z-index: 1; }
.tl-body { padding: 10px 14px; border-radius: 14px; background: color-mix(in srgb, var(--c) 10%, var(--surface)); border: 1px solid color-mix(in srgb, var(--c) 22%, transparent); }
.tl-body b { display: block; }
.tl-body span { color: var(--muted); font-size: 13.5px; }
.tl.past { opacity: .55; }
.tl.now .tl-body { box-shadow: 0 0 0 2px var(--c); }
.tl.now::before { background: var(--c); animation: ping-c 1.6s infinite; }
@keyframes ping-c { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--c) 60%, transparent); } 70%, 100% { box-shadow: 0 0 0 10px transparent; } }
.tl.cancel .tl-body b { text-decoration: line-through; }
.tl-tag { float: right; font-size: 11.5px; font-weight: 700; padding: 1px 8px; border-radius: 99px; background: var(--c); color: #fff; }
.empty-fun { text-align: center; padding: 26px 10px; color: var(--muted); }
.empty-fun span { display: block; font-size: 40px; margin-bottom: 6px; animation: bob 3s ease-in-out infinite; }
.task-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.task-list li { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 14px; background: var(--surface-2); }
.task-dot { flex: none; width: 10px; height: 10px; border-radius: 50%; background: var(--c, var(--muted)); }
.task-main { flex: 1; min-width: 0; }
.task-main b { display: block; font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-main span { color: var(--muted); font-size: 12.5px; }
.task-due { flex: none; font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 99px; background: var(--primary-soft); color: var(--primary); }
.task-due.urgent { background: var(--danger-soft); color: var(--danger); }
.task-warn { margin-top: 10px; padding: 10px 14px; border-radius: 12px; background: var(--danger-soft); color: var(--danger); font-size: 13.5px; font-weight: 600; }

/* ================= Đáp ứng màn hình ================= */
@media (max-width: 1000px) {
  .hero2-in { grid-template-columns: 1fr; }
  .hero2-art { height: 440px; max-width: 620px; width: 100%; margin: 0 auto; }
  .bento { grid-template-columns: repeat(2, 1fr); grid-template-areas: "week week" "parity parity" "gpa attend" "tasks tasks" "class free" "m1 m2" "m3 m4"; }
  .me-top { grid-template-columns: 1fr; }
  .me-stats { grid-template-columns: repeat(2, 1fr); }
  .me-cols { grid-template-columns: 1fr; }
  .stats-in { grid-template-columns: repeat(2, 1fr); }
  .themes { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .hero2 { padding-top: 28px; }
  .doodle-note { margin-left: 40px; }
  .hero2-art { height: 380px; }
  .laptop { width: 100%; top: 40px; padding: 10px; }
  .wk { grid-template-columns: 28px repeat(5, 1fr); grid-auto-rows: 30px; gap: 3px; font-size: 10px; }
  .wk .c small { display: none; }
  .phone { width: 150px; top: 150px; right: -6px; padding: 18px 8px 10px; border-width: 5px; }
  .ph-item { padding: 6px 8px 6px 10px; } .ph-item b { font-size: 12px; } .ph-item:nth-child(n+6) { display: none; }
  .chip-gpa { right: auto; left: 52%; top: -6px; } .chip-next { left: -4px; top: -10px; }
  .chip-task { bottom: 0; left: 0; }
  .st3 { display: none; }
  .bento { grid-template-columns: 1fr; grid-template-areas: none; }
  .bento .tile { grid-area: auto !important; }
  .t-parity, .t-tasks { flex-direction: column; align-items: stretch; }
  .tchips, .checks { flex: none; }
  .aud-panel { grid-template-columns: 1fr; padding: 20px; }
  .steps3 { grid-template-columns: 1fr; gap: 28px; }
  .steps3::before { display: none; }
  .post-grid { grid-template-columns: 1fr; }
  .themes { gap: 16px; }
  .quick { grid-template-columns: repeat(2, 1fr); }
  .me-hello, .me-profile { padding: 20px; }
  .up-card { padding: 14px; gap: 12px; }
  .up-when { min-width: 72px; }
  .up-when b { font-size: 20px; }
  .mstat b { font-size: 24px; }
  .mstat { padding: 14px; }
  .foot-links { gap: 28px; }
}

/* Người dùng bật "giảm chuyển động": tắt hiệu ứng */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js .reveal { opacity: 1; transform: none; }
  .js .wk .c, .js .mini-week i { opacity: 1; transform: none; }
}

/* Ô lưới không bị nội dung dài (chữ không xuống dòng) đẩy rộng ra ngoài màn hình */
.me-top > *, .me-cols > *, .me-stats > *, .bento > *, .hero2-in > *, .task-list > li { min-width: 0; }
.me-hello { display: flex; flex-direction: column; }
.me-hello .quick { margin-top: auto; padding-top: 16px; }
.mstat-label { display: block; padding-right: 34px; }
@media (max-width: 680px) {
  .laptop { top: 64px; }
  .phone { top: 170px; }
  .chip-gpa { display: none; }
  .chip-next { top: 0; left: 0; max-width: calc(100% - 20px); }
  .float-chip { font-size: 12px; padding: 8px 12px; }
}
.sem-prog { margin-top: 16px; }
.sem-prog p { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 6px; font-size: 13.5px; color: var(--muted); }
.sem-prog p b { color: var(--text); }
.sem-prog > span { display: block; height: 8px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.sem-prog > span i { display: block; height: 100%; width: 0; border-radius: 99px; background: linear-gradient(90deg, #1f9d63, #0ea5b7); transition: width 1.4s .6s cubic-bezier(.3, 0, .2, 1); }
@media (max-width: 680px) {
  .cta2 { padding: 64px 20px 56px; }
  .cta-float { font-size: 24px; }
  .f1 { left: 16px; top: 16px; } .f2 { right: 16px; top: 16px; } .f3 { left: 16px; bottom: 16px; } .f4 { right: 16px; bottom: 16px; }
}
.center .btn { white-space: normal; max-width: 100%; text-align: center; }