/* ==========================================================
   El Misterio del Asesinato en SQL — tema neutro / escritorio
   ========================================================== */

:root {
    --bg: #15130f;
    --panel-bg: rgba(18, 16, 13, 0.78);
    --panel-border: rgba(255, 255, 255, 0.12);
    --accent: #c99a4a;
    --accent-strong: #e0b262;
    --danger: #b5544a;
    --danger-strong: #cf6157;
    --text: #ece7dd;
    --text-dim: #a49c8d;

    --panel-solid: #18150f;
    --group-selectores: #e0b262;
    --group-concatenadores: #7fadd1;
    --group-orden: #9fb98a;
    --group-extra: #cf6157;
}

* { box-sizing: border-box; }

html {
    font-size: 18px;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    color: var(--text);
    font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
}

body {
    background: var(--bg);
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: -30px;
    background: url("../desk-bg.jpg") center / cover no-repeat;
    filter: blur(7px) brightness(0.45) saturate(0.9);
    z-index: -1;
}

.hidden { display: none !important; }

/* ---------- Landing ---------- */

#landing {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.25rem;
}

#landing .case-footer {
    margin-top: 2rem;
    background: transparent;
    border-top: none;
}

.landing-card {
    max-width: 620px;
    text-align: center;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 14px;
    padding: 2.5rem 2.25rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.landing-img {
    max-width: 220px;
    width: 100%;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

.landing-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text);
    margin: 0 0 0.6rem;
}

.landing-tagline {
    color: var(--accent-strong);
    font-size: 1.15rem;
    margin: 0 0 1.5rem;
}

.landing-text {
    color: var(--text-dim);
    line-height: 1.65;
    margin: 0 0 2rem;
    font-size: 1.05rem;
}

.landing-text strong {
    color: var(--text);
    font-weight: 600;
}

/* ---------- Buttons ---------- */

.btn {
    font-family: inherit;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 0.7rem 1.4rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.11);
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #211a0e;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
}

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #241110;
    font-weight: 600;
}

.btn-danger:hover {
    background: var(--danger-strong);
    border-color: var(--danger-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
}

.btn-ghost:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* ---------- Workspace layout ---------- */

#workspace {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.back-fab {
    position: fixed;
    top: 1rem;
    left: 1rem;
    padding: 0.55rem 1.1rem;
    font-size: 0.9rem;
    z-index: 300;
    background: rgba(20, 18, 14, 0.55);
    backdrop-filter: blur(2px);
}

.workspace-title {
    position: fixed;
    top: 1.2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dim);
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.9);
    z-index: 300;
    pointer-events: none;
}

.workspace-title span {
    color: var(--text);
}

/* ---------- Discreet help link ---------- */

.help-fab {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    color: var(--text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    z-index: 500;
    transition: background 0.15s ease, color 0.15s ease;
}

.help-fab:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.1);
}

/* ---------- Two-panel layout: diagram + query console ---------- */

.panels {
    flex: 1;
    display: flex;
    align-items: stretch;
    gap: 1.25rem;
    padding: 4rem 1.5rem 1.25rem;
    min-height: 0;
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.db-panel .panel-hint {
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

.panel h2 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 0.5rem;
}

.panel-hint {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin: 0 0 0.85rem;
}

.db-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
    flex: 1.15;
    min-width: 0;
    padding: 0.25rem 0;
}

.console-fab {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: var(--accent);
    color: #211a0e;
    border: none;
    padding: 1rem 1.25rem;
    border-radius: 10px 0 0 10px;
    font-family: inherit;
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    box-shadow: -6px 0 20px rgba(0, 0, 0, 0.4);
    z-index: 400;
    transition: background 0.15s ease, padding-right 0.15s ease;
}

.console-fab:hover {
    background: var(--accent-strong);
    padding-right: 1.6rem;
}

.accuse-fab {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 300;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: flex-end;
    z-index: 900;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0s linear 0.32s;
}

.drawer-overlay.open {
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}

.drawer-panel {
    position: relative;
    width: 58%;
    min-width: 480px;
    max-width: 980px;
    height: 100%;
    background: var(--panel-solid);
    border-left: 1px solid var(--panel-border);
    padding: 2.25rem 2.5rem;
    overflow-y: auto;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
    transform: translateX(100%);
    transition: transform 0.32s ease;
}

.drawer-overlay.open .drawer-panel {
    transform: translateX(0);
}

.drawer-panel h2 {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
}

@media (max-width: 860px) {
    .drawer-panel { width: 100%; min-width: 0; padding: 1.5rem; }
}

.diagram-scroll {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

#schema-diagram {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.loading {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* ---------- sql-exercise component overrides ---------- */

sql-exercise .sqlExHomeDiv {
    background: transparent;
    padding: 0;
    margin: 0;
    font-family: inherit;
}

sql-exercise .sqlExComment {
    color: var(--text-dim);
    font-size: 0.92rem;
}

sql-exercise .sqlExOutputArea {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 0.85rem;
    margin-top: 0.85rem;
    max-width: 100%;
    font-size: 0.95rem;
    color: var(--text);
}

sql-exercise .sqlExOutputArea .returnOkay { color: var(--text); }
sql-exercise .sqlExOutputArea .returnError { color: var(--danger-strong); }

sql-exercise .sqlExInputArea input[type="submit"],
sql-exercise .sqlExInputArea input[type="button"] {
    font-family: inherit;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 0.5rem 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
}

sql-exercise .sqlExInputArea input[type="submit"] {
    background: var(--accent);
    border-color: var(--accent);
    color: #211a0e;
    font-weight: 600;
}

sql-exercise .sqlExInputArea input[type="submit"]:hover {
    background: var(--accent-strong);
}

sql-exercise .sqlExInputArea input[type="button"]:hover {
    background: rgba(255, 255, 255, 0.11);
}

sql-exercise .sqlExInputArea input:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ---------- data tables ---------- */

.datatable {
    border-color: rgba(255, 255, 255, 0.15);
    font-size: 0.92rem;
    color: var(--text);
    border-collapse: collapse;
    width: 100%;
}

.datatable thead {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.datatable td, .datatable th {
    border-color: rgba(255, 255, 255, 0.1);
    padding: 6px 10px;
}

/* ---------- CodeMirror theme ---------- */

.cm-s-neon.CodeMirror {
    background: #0f0d0a;
    color: #ece7dd;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    font-size: 1.02rem;
}

.cm-s-neon .CodeMirror-gutters {
    background: #0f0d0a;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.cm-s-neon .CodeMirror-linenumber { color: #6b6455; }
.cm-s-neon .CodeMirror-cursor { border-left: 1px solid var(--accent); }
.cm-s-neon div.CodeMirror-selected { background: rgba(201, 154, 74, 0.2); }
.cm-s-neon span.cm-keyword { color: var(--accent-strong); font-weight: bold; }
.cm-s-neon span.cm-string { color: #9fb98a; }
.cm-s-neon span.cm-number, .cm-s-neon span.cm-atom { color: #c99a4a; }
.cm-s-neon span.cm-builtin { color: #cbb896; }
.cm-s-neon span.cm-variable { color: #ece7dd; }
.cm-s-neon span.cm-comment { color: #6b6455; font-style: italic; }
.cm-s-neon span.cm-operator { color: #cbb896; }
.cm-s-neon .CodeMirror-activeline-background { background: rgba(255, 255, 255, 0.04); }
.cm-s-neon .CodeMirror-matchingbracket { outline: 1px solid var(--accent); color: var(--accent) !important; }

/* ---------- Accusation modal ---------- */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-box {
    position: relative;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 2.25rem;
    max-width: 460px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

#accuse-modal .modal-box,
#manual-modal .modal-box {
    background: var(--panel-solid);
}

@keyframes twistShake {
    0% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(2px); }
    100% { transform: translateX(0); }
}

.modal-box.twist-flash {
    animation: twistShake 0.5s ease;
    border-color: var(--accent);
}

.modal-box h2 {
    color: var(--text);
    font-size: 1.5rem;
    margin-top: 0;
}

.modal-box p {
    color: var(--text-dim);
    font-size: 1.05rem;
    line-height: 1.5;
}

.modal-close {
    position: absolute;
    top: 0.85rem;
    right: 0.85rem;
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.3rem;
    cursor: pointer;
}

.modal-close:hover { color: var(--text); }

#accuse-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 0.65rem 0.8rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

#accuse-input:focus {
    outline: none;
    border-color: var(--accent);
}

#accuse-result { margin-top: 1.25rem; text-align: center; font-size: 1.15rem; line-height: 1.5; }

.case-closed {
    font-weight: 700;
    font-size: 1.7rem;
    color: var(--danger-strong);
    letter-spacing: 2px;
    transform: rotate(-3deg);
    border: 3px solid var(--danger-strong);
    display: inline-block;
    padding: 0.25rem 0.85rem;
    border-radius: 6px;
    margin-bottom: 0.75rem;
}

.accuse-echo { color: var(--text); margin-bottom: 0.5rem; }
.accuse-echo strong { color: var(--accent-strong); }
.accuse-note { color: var(--text-dim); font-size: 0.92rem; }
.accuse-warning { color: var(--danger-strong); font-size: 1.1rem; }
.accuse-success { color: var(--accent-strong); font-size: 1.1rem; margin-bottom: 0.5rem; }

.lives {
    text-align: center;
    font-size: 1.4rem;
    letter-spacing: 0.5rem;
    margin: 0 0 1rem;
    color: var(--panel-border);
}

.lives .life-on { color: var(--danger-strong); }
.lives .life-off { color: rgba(255, 255, 255, 0.18); }

#accuse-reset { width: 100%; margin-top: 0.75rem; }

/* ---------- Footer ---------- */

.case-footer {
    padding: 1rem 1.5rem 1.75rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.82rem;
    background: var(--panel-bg);
    border-top: 1px solid var(--panel-border);
}

.case-footer a { color: var(--accent-strong); text-decoration: none; }
.case-footer a:hover { text-decoration: underline; }

/* ---------- Manual modal (popup version) ---------- */

.manual-modal-box {
    max-width: 1400px;
    width: 96vw;
    height: 94vh;
    max-height: 94vh;
    padding: 2.5rem 2.75rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.manual-modal-box h2 {
    margin-bottom: 1.1rem;
    flex: none;
}

#manual-search {
    display: block;
    width: 100%;
    flex: none;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 0.65rem 0.9rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

#manual-search:focus {
    outline: none;
    border-color: var(--accent);
}

.manual-layout {
    display: flex;
    gap: 1.5rem;
    flex: 1;
    min-height: 0;
}

.manual-nav {
    flex: 0 0 190px;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-right: 1.5rem;
    border-right: 1px solid var(--panel-border);
    overflow-y: auto;
}

.manual-nav-link {
    background: none;
    border: none;
    text-align: left;
    color: var(--text-dim);
    font-family: inherit;
    font-size: 0.98rem;
    padding: 0.65rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.manual-nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
}

.manual-nav-link.active {
    font-weight: 600;
}

.manual-nav-link[data-target="manual-group-selectores"].active,
.manual-nav-link[data-target="manual-group-selectores"]:hover { color: var(--group-selectores); }
.manual-nav-link[data-target="manual-group-concatenadores"].active,
.manual-nav-link[data-target="manual-group-concatenadores"]:hover { color: var(--group-concatenadores); }
.manual-nav-link[data-target="manual-group-orden"].active,
.manual-nav-link[data-target="manual-group-orden"]:hover { color: var(--group-orden); }
.manual-nav-link[data-target="manual-group-extra"].active,
.manual-nav-link[data-target="manual-group-extra"]:hover { color: var(--group-extra); }

.manual-nav-link.disabled {
    opacity: 0.35;
    pointer-events: none;
}

.manual-body {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    padding-right: 0.75rem;
    scroll-behavior: smooth;
}

.manual-lead {
    color: var(--text-dim);
    line-height: 1.6;
    font-size: 1rem;
    margin-top: 0;
}

.manual-group {
    margin-bottom: 2.75rem;
}

.manual-group:last-of-type {
    margin-bottom: 0;
}

.manual-group-title {
    margin: 0 0 0.45rem;
    font-size: 1.25rem;
    color: var(--accent-strong);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.manual-group-desc {
    margin: 0 0 1.4rem;
    color: var(--text-dim);
    font-size: 1rem;
}

#manual-group-selectores .manual-group-title { color: var(--group-selectores); }
#manual-group-concatenadores .manual-group-title { color: var(--group-concatenadores); }
#manual-group-orden .manual-group-title { color: var(--group-orden); }
#manual-group-extra .manual-group-title { color: var(--group-extra); }

.manual-body .lesson {
    margin-bottom: 1.5rem;
    padding: 1.85rem;
    gap: 2rem;
}

.manual-body .lesson:last-of-type {
    margin-bottom: 0;
}

.manual-body .lesson-img {
    max-width: 46%;
}

#manual-no-results {
    color: var(--text-dim);
    text-align: center;
    padding: 2rem 0 0.5rem;
}

@media (max-width: 860px) {
    .manual-body .lesson-img { max-width: 100%; }

    .manual-modal-box { height: 92vh; max-height: 92vh; padding: 1.5rem 1.25rem; }
    .manual-layout { flex-direction: column; gap: 0.75rem; }
    .manual-nav {
        flex: none;
        flex-direction: row;
        overflow-x: auto;
        overflow-y: visible;
        border-right: none;
        border-bottom: 1px solid var(--panel-border);
        padding-right: 0;
        padding-bottom: 0.65rem;
    }
    .manual-nav-link { flex: none; white-space: nowrap; }
}

/* ---------- Lesson cards (used inside the manual modal) ---------- */

.lesson p {
    color: var(--text-dim);
    line-height: 1.6;
    font-size: 1.02rem;
}

.lesson a {
    color: var(--accent-strong);
}

.lesson {
    display: flex;
    align-items: center;
    gap: 2.25rem;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    padding: 1.75rem;
    margin-bottom: 1.75rem;
}

.lesson.reverse {
    flex-direction: row-reverse;
}

.lesson-text {
    flex: 1;
    min-width: 0;
}

.lesson h4 {
    margin-top: 0;
    font-size: 1.2rem;
    color: var(--text);
}

.lesson code {
    background: rgba(255, 255, 255, 0.08);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    font-family: "Courier New", monospace;
    color: var(--accent-strong);
}

.lesson-img {
    display: block;
    flex: 1;
    min-width: 0;
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
    .landing-title { font-size: 1.5rem; }
    .lesson, .lesson.reverse { flex-direction: column; }

    .fab-label { display: none; }
    .console-fab { padding: 0.85rem 0.9rem; font-size: 1.3rem; }
    .console-fab:hover { padding-right: 0.9rem; }
    .accuse-fab { padding: 0.7rem 0.85rem; font-size: 1.2rem; }

    .workspace-title {
        top: 3.5rem;
        left: 1rem;
        right: 1rem;
        transform: none;
        text-align: center;
        font-size: 0.95rem;
    }
    .panels { padding-top: 6rem; }
}