/* css/codetantra.css */

.ct-dashboard-container {
    padding: 1.25rem 1.5rem;
    max-width: 920px;
    margin: 0 auto;
    color: var(--text-main, #e0e6ed);
    animation: ct-fadeIn 0.35s ease;
}

/* ── Header ─────────────────────────── */
.ct-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.ct-header-info h1 { font-size: 1.5rem; font-weight: 700; color: #fff; margin-bottom: 0.25rem; }
.ct-header-info p  { color: var(--text-dim, #7a8a9e); font-size: 0.85rem; }

/* ── Subject page header ─────────────── */
.ct-subject-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.ct-subject-page-title-row { display: flex; align-items: center; gap: 0.75rem; }
.ct-subject-page-name      { font-size: 1.5rem; font-weight: 800; color: #fff; margin: 0 0 0.15rem; line-height: 1.2; }
.ct-subject-page-fullname  { color: var(--text-dim, #7a8a9e); font-size: 0.82rem; margin: 0; }

/* ── Pill badge (SQL, PY …) ──────────── */
.ct-subject-pill-badge {
    display: inline-flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,.5);
    border: 1.5px solid rgba(255,255,255,.22);
    color: #fff; font-size: 0.72rem; font-weight: 700;
    letter-spacing: .5px; padding: 3px 9px; border-radius: 5px; width: fit-content;
}
.ct-pill-lg { font-size: 0.82rem; padding: 4px 12px; border-radius: 7px; }
.ct-subject-icon-emoji { font-size: 1.9rem; }

/* ── Buttons ─────────────────────────── */
.ct-btn-primary {
    background: linear-gradient(90deg,#6D5DF2,#00f2ff);
    border: none; color: #fff; padding: 10px 20px;
    border-radius: 8px; font-weight: 700; font-size: 0.88rem;
    cursor: pointer; width: 100%; transition: all .2s ease;
    box-shadow: 0 3px 12px rgba(0,242,255,.22);
}
.ct-btn-primary:hover { box-shadow: 0 5px 18px rgba(0,242,255,.42); transform: translateY(-1px); }

.ct-btn-outline {
    background: transparent; border: 1px solid rgba(255,255,255,.14);
    color: var(--text-dim, #7a8a9e); padding: 8px 14px;
    border-radius: 7px; font-size: 0.82rem; cursor: pointer; transition: all .2s ease; white-space: nowrap;
}
.ct-btn-outline:hover { border-color: rgba(0,242,255,.4); color: #00f2ff; }
.ct-download-btn { flex-shrink: 0; display: flex; align-items: center; gap: 5px; padding: 8px 14px; }

/* ── Back button ─────────────────────── */
.ct-back-btn {
    background: transparent; border: none;
    color: var(--text-dim, #7a8a9e); cursor: pointer;
    font-size: 0.88rem; margin-bottom: 0.75rem;
    display: inline-flex; align-items: center; gap: 0.35rem;
    padding: 0; transition: color .2s;
}
.ct-back-btn:hover { color: #00f2ff; }

/* ── Search bar ──────────────────────── */
.ct-search-bar {
    width: 100%; padding: 10px 14px;
    background: rgba(0,0,0,.3);
    border: 1px solid rgba(123,97,255,.2);
    border-radius: 8px; color: #fff; font-size: 0.88rem;
    margin-bottom: 1rem; outline: none;
    transition: all .2s ease; box-sizing: border-box;
}
.ct-search-bar:focus { border-color: #00f2ff; box-shadow: 0 0 10px rgba(0,242,255,.1); }
.ct-search-bar::placeholder { color: rgba(255,255,255,.28); }

/* ═══════════════════════════════════════
   WEEK GROUPS  —  matching screenshot
═══════════════════════════════════════ */
.ct-week-group {
    margin-bottom: 0.75rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.07);
    background: rgba(14,12,24,.7);
}

/* Week header row */
.ct-week-header {
    padding: 0.85rem 1.1rem;
    cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    font-weight: 700; font-size: 1rem; color: #fff;
    background: rgba(18,16,30,.95);
    transition: background .2s; user-select: none;
}
.ct-week-header:hover { background: rgba(26,23,44,.98); }

/* Arrow */
.ct-week-arrow {
    display: inline-block; font-style: normal;
    margin-right: 0.55rem; font-size: 0.65rem;
    transition: transform 0.28s ease;
    color: rgba(255,255,255,.55);
    transform: rotate(0deg); /* ▶ pointing right = collapsed */
}
.ct-week-group.active .ct-week-arrow { transform: rotate(90deg); } /* ▶ rotated = ▼ = expanded */

/* Locked */
.ct-week-locked            { opacity: .72; }
.ct-week-header-locked     { cursor: default; }
.ct-week-header-locked:hover { background: rgba(18,16,30,.95); }
.ct-crown-icon { font-size: 0.85rem; filter: drop-shadow(0 0 5px rgba(255,200,0,.5)); }

/* Week content wrapper */
.ct-week-content {
    display: none;
    padding: 0.85rem 1.1rem;
    background: transparent;
}
.ct-week-group.active .ct-week-content { display: block; animation: ct-slideDown .22s ease; }
.ct-coming-soon { text-align: center; padding: 1rem; color: var(--text-dim,#7a8a9e); font-style: italic; font-size: 0.82rem; }

/* ═══════════════════════════════════════
   QUESTION BLOCKS  —  borderless style
   matching screenshot: just title + code
═══════════════════════════════════════ */
.ct-question-block {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    margin-bottom: 1.1rem;
}
.ct-question-block:last-child { margin-bottom: 0; }

/* Title row */
.ct-question-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 0.45rem; gap: 0.5rem;
}
.ct-question-title {
    font-size: 0.92rem; font-weight: 600; color: #e2e8f0; line-height: 1.35;
}
.ct-q-num {
    color: var(--text-dim, #7a8a9e); font-weight: 500;
    margin-right: 4px; font-size: 0.88rem;
}

/* Copy button */
.ct-code-actions { display: flex; gap: 0.3rem; flex-shrink: 0; }
.ct-icon-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,.1);
    color: rgba(255,255,255,.38);
    padding: 4px 7px; border-radius: 5px;
    cursor: pointer; font-size: 0.75rem;
    transition: all .2s; line-height: 1;
}
.ct-icon-btn:hover {
    background: rgba(0,242,255,.08); color: #00f2ff;
    border-color: rgba(0,242,255,.3);
}

/* Code block — dark rounded pill matching screenshot */
.ct-code-container {
    border-radius: 10px; overflow: hidden;
    border: 1px solid rgba(255,255,255,.06);
    background: #111318;
}
.ct-code-container pre {
    margin: 0 !important;
    padding: 0.85rem 1.1rem !important;
    background: #111318 !important;
    font-family: 'JetBrains Mono','Fira Code','Consolas',monospace;
    font-size: 0.82rem; line-height: 1.6; overflow-x: auto;
    color: #d4d4d4;
}
.ct-code-container code { font-family: inherit; font-size: inherit; color: inherit; }

/* ── SQL Syntax Token Colors ─────────────────────── */
.ct-t-keyword  { color: #569cd6; font-weight: 600; }  /* SELECT FROM WHERE etc  → blue */
.ct-t-string   { color: #ce9178; }                     /* 'Steven' 'King'        → orange */
.ct-t-number   { color: #b5cea8; }                     /* 5000 100               → yellow-green */
.ct-t-comment  { color: #6a9955; font-style: italic; } /* -- comments            → green */
.ct-t-operator { color: #d4d4d4; }                     /* <> = + -               → white-grey */

/* ── Onboarding ──────────────────────── */
.ct-onboarding-wrapper {
    max-width: 440px; margin: 2rem auto;
    background: rgba(21,19,34,.85);
    border: 1px solid rgba(123,97,255,.2);
    border-radius: 16px; padding: 2rem 1.75rem;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 36px rgba(0,0,0,.35);
    text-align: center;
}
.ct-setup-logo       { width: 110px; margin: 0 auto 1.25rem; display: block; }
.ct-onboarding-title { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 0.3rem; }
.ct-onboarding-sub   { color: var(--text-dim,#7a8a9e); font-size: 0.85rem; margin-bottom: 1.5rem; }
.ct-onboarding-form  { text-align: left; }

.ct-form-group { margin-bottom: 1rem; }
.ct-form-group label { display: block; margin-bottom: 0.35rem; color: var(--text-dim,#7a8a9e); font-size: 0.82rem; font-weight: 500; }

.ct-select {
    width: 100%; padding: 9px 12px;
    background: rgba(0,0,0,.3);
    border: 1px solid rgba(255,255,255,.1);
    color: #fff; border-radius: 7px; font-size: 0.88rem;
    outline: none; transition: border-color .2s ease;
    appearance: none; -webkit-appearance: none;
}
.ct-select:focus { border-color: #00f2ff; }
.ct-select option { background: #11131a; color: white; }

/* ── Subject grid ────────────────────── */
.ct-subject-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(240px,1fr)); gap: 1.1rem; }
.ct-subject-card {
    background: rgba(21,19,34,.85);
    border: 1px solid rgba(123,97,255,.15);
    border-radius: 14px; padding: 1.4rem;
    cursor: pointer; transition: all .22s ease;
    display: flex; flex-direction: column; gap: 0.65rem;
    backdrop-filter: blur(14px);
}
.ct-subject-card:hover { transform: translateY(-4px); border-color: rgba(0,242,255,.28); box-shadow: 0 6px 22px rgba(0,242,255,.12); }
.ct-subject-title    { font-size: 1.05rem; font-weight: 700; color: #fff; }
.ct-subject-fullname { font-size: 0.78rem; color: var(--text-dim,#7a8a9e); line-height: 1.4; }
.ct-subject-meta     { font-size: 0.78rem; color: var(--text-dim,#7a8a9e); }
.ct-view-btn         { margin-top: auto; color: #00f2ff; font-weight: 600; font-size: 0.85rem; }
.ct-empty-state      { grid-column: 1/-1; text-align: center; padding: 2.5rem; color: var(--text-dim,#7a8a9e); }

/* ── Toast ───────────────────────────── */
.ct-toast {
    position: fixed; bottom: 20px; right: 20px;
    background: #1e2235; border: 1px solid rgba(0,242,255,.3);
    color: #00f2ff; padding: 8px 16px; border-radius: 8px;
    font-weight: 600; font-size: 0.85rem; z-index: 9999;
    animation: ct-fadeIn .2s ease;
}

/* ── Animations ──────────────────────── */
@keyframes ct-fadeIn    { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:translateY(0)} }
@keyframes ct-slideDown { from{opacity:0;transform:translateY(-6px)} to{opacity:1;transform:translateY(0)} }

/* ── Responsive ──────────────────────── */
@media(max-width:768px){
    .ct-dashboard-container{padding:.9rem 1rem}
    .ct-subject-page-name{font-size:1.25rem}
    .ct-subject-grid{grid-template-columns:1fr 1fr}
    .ct-code-container pre{ font-size: 0.76rem; }
}
@media(max-width:480px){
    .ct-subject-grid{grid-template-columns:1fr}
    .ct-subject-page-title-row{flex-direction:column;align-items:flex-start}
}

/* ════════════════════════════════════════
   THEORY LAYOUT  (Unit → Section → Q&A)
════════════════════════════════════════ */

/* ── Unit group (outer accordion) ─────── */
.ct-unit-group {
    margin-bottom: 0.6rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.08);
    background: rgba(14,12,24,.75);
}

.ct-unit-header {
    padding: 1rem 1.25rem;
    cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    font-weight: 700; font-size: 1rem; color: #fff;
    background: rgba(18,16,30,.95);
    transition: background .2s; user-select: none;
}
.ct-unit-header:hover { background: rgba(28,25,46,.98); }

.ct-unit-arrow {
    display: inline-block; font-style: normal;
    margin-right: 0.55rem; font-size: 0.65rem;
    transition: transform 0.28s ease;
    color: rgba(255,255,255,.55);
    transform: rotate(0deg);
}
.ct-unit-group.active > .ct-unit-header .ct-unit-arrow { transform: rotate(90deg); }

/* Locked unit */
.ct-unit-locked            { opacity: .72; }
.ct-unit-header-locked     { cursor: default; }
.ct-unit-header-locked:hover { background: rgba(18,16,30,.95); }

/* Unit content */
.ct-unit-content {
    display: none;
    padding: 0.5rem 0.75rem;
    background: rgba(10,8,18,.5);
}
.ct-unit-group.active > .ct-unit-content { display: block; animation: ct-slideDown .22s ease; }

/* ── Section group (inner sub-accordion) ─ */
.ct-section-group {
    margin-bottom: 0.4rem;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.06);
}

.ct-section-header {
    padding: 0.65rem 1rem;
    cursor: pointer;
    display: flex; align-items: center;
    font-weight: 600; font-size: 0.88rem; color: #d4d4d4;
    background: rgba(20,18,32,.9);
    transition: background .2s; user-select: none;
}
.ct-section-header:hover { background: rgba(28,25,46,.95); color: #fff; }

.ct-section-arrow {
    display: inline-block; font-style: normal;
    margin-right: 0.55rem; font-size: 0.6rem;
    transition: transform 0.25s ease;
    color: rgba(255,255,255,.4);
    transform: rotate(0deg);
}
.ct-section-group.active > .ct-section-header .ct-section-arrow { transform: rotate(90deg); }

/* Section content */
.ct-section-content {
    display: none;
    padding: 0.5rem 0.75rem;
    background: rgba(8,6,16,.7);
}
.ct-section-group.active > .ct-section-content { display: block; animation: ct-slideDown .2s ease; }

/* ── Q&A Items ────────────────────────── */
.ct-qa-block {
    margin-bottom: 1.25rem;
}
.ct-qa-block:last-child { margin-bottom: 0; }

.ct-qa-number-label {
    font-weight: 700;
    font-size: 0.95rem;
    color: #fff;
    margin-bottom: 0.6rem;
    margin-left: 0.25rem;
}

.ct-qa-answer-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 0.85rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.ct-qa-line {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    color: #c8d0dc;
    font-size: 0.9rem;
    line-height: 1.55;
}

.ct-check-icon {
    color: #4ade80;
    margin-top: 4px;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ── Section divider label ────────────── */
.ct-theory-section-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-dim, #7a8a9e);
    margin: 1.5rem 0 0.6rem;
    padding-left: 0.25rem;
}