/* =====================================================
   COURS MEMO - STYLESHEET
   Créé par Antigravity - 2025
   ===================================================== */

:root {
    --primary: #68a063;
    /* Default Green - To be customized per course */
    --primary-bright: #83cd29;
    --secondary: #303030;
    --accent: #ffffff;
    --bg: #222222;
    --bg2: #2b2b2b;
    --card: #303030;
    --text: #f0f0f0;
    --muted: #a0a0a0;
    --border: #444444;

    /* Syntax Highlighting */
    --kw: #c792ea;
    --fn: #82aaff;
    --str: #c3e88d;
    --num: #f78c6c;
    --c: #546e7a;
    --var: #ffcb6b;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === HEADER === */
header {
    position: sticky;
    top: 0;
    background: rgba(34, 34, 34, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 16px 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-bright);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: transparent;
    color: var(--primary-bright);
    border: 2px solid var(--primary-bright);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

nav {
    display: flex;
    gap: 4px;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    transition: all 0.2s;
}

nav a:hover {
    background: var(--bg2);
    color: var(--primary-bright);
}

/* === MOBILE MENU TOGGLE === */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: transparent;
    border: none;
    z-index: 101;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-bright);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* === HERO === */
.hero {
    padding: 70px 0 50px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    background: radial-gradient(circle at center, rgba(104, 160, 99, 0.1) 0%, transparent 60%);
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-bright);
    margin-bottom: 16px;
    text-shadow: 0 0 20px rgba(104, 160, 99, 0.3);
}

.hero p {
    color: var(--muted);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* === INFO BOXES === */
.intro-box {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 30px 0;
}

.intro-box h3 {
    margin-top: 0;
    color: var(--primary-bright);
}

/* === TOC === */
.toc {
    padding: 35px 0;
    border-bottom: 1px solid var(--border);
}

.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
}

.toc-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.88rem;
    transition: all 0.2s;
}

.toc-item:hover {
    border-color: var(--primary);
    transform: translateX(4px);
    background: rgba(104, 160, 99, 0.1);
}

.toc-num {
    width: 26px;
    height: 26px;
    background: rgba(104, 160, 99, 0.15);
    color: var(--primary-bright);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    flex-shrink: 0;
    border: 1px solid rgba(104, 160, 99, 0.3);
}

/* === SECTIONS === */
section {
    padding: 55px 0;
    border-bottom: 1px solid var(--border);
}

.sec-header {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 30px;
}

.sec-num {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), #3e6e39);
    color: #fff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    font-weight: 600;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(104, 160, 99, 0.2);
}

.sec-title {
    font-size: 1.7rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--primary-bright);
}

.sec-sub {
    color: var(--muted);
    font-size: 0.95rem;
}

/* === DETAILS === */
details {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin: 14px 0;
    overflow: hidden;
}

summary {
    padding: 12px 16px;
    cursor: pointer;
    font-weight: 600;
    color: var(--primary-bright);
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s;
}

summary:hover {
    background: rgba(131, 205, 41, 0.05);
}

summary::after {
    content: '+';
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--muted);
    transition: transform 0.2s;
}

details[open] summary::after {
    transform: rotate(45deg);
}

.details-content {
    padding: 16px;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* === CODE === */
.code {
    background: #1e1e1e;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin: 14px 0;
    overflow: hidden;
}

.code-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: #252526;
    border-bottom: 1px solid var(--border);
    font-size: 0.78rem;
    color: var(--muted);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.r {
    background: #ff5f56;
}

.dot.y {
    background: #ffbd2e;
}

.dot.g {
    background: #27ca40;
}

pre {
    padding: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.55;
    overflow-x: auto;
    color: #abb2bf;
}

.kw {
    color: var(--kw);
}

.fn {
    color: var(--fn);
}

.str {
    color: var(--str);
}

.num {
    color: var(--num);
}

.c {
    color: var(--c);
    font-style: italic;
}

.var {
    color: var(--var);
}

/* === UTILS === */
.grid2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.tip,
.info,
.warning {
    padding: 14px 18px;
    border-radius: 0 10px 10px 0;
    margin: 14px 0;
    font-size: 0.95rem;
}

.tip {
    background: rgba(104, 160, 99, 0.1);
    border-left: 3px solid var(--primary);
}

.warning {
    background: rgba(247, 140, 108, 0.1);
    border-left: 3px solid var(--num);
}

.info {
    border-left: 3px solid var(--primary);
}

.tip strong,
.warning strong {
    color: var(--primary-bright);
}

/* === FOOTER === */
footer {
    padding: 40px 0;
    text-align: center;
    color: var(--dim);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .menu-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(34, 34, 34, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 80px 20px 20px;
        gap: 8px;
        transition: right 0.3s ease;
        box-shadow: -4px 0 15px rgba(0, 0, 0, 0.5);
        border-left: 1px solid var(--border);
        z-index: 100;
    }

    nav.active {
        right: 0;
    }

    nav a {
        width: 100%;
        padding: 14px 18px;
        font-size: 0.95rem;
        border-left: 3px solid transparent;
    }

    nav a:hover {
        border-left-color: var(--primary-bright);
        transform: translateX(0);
    }

    .sec-header {
        flex-direction: column;
    }
}