/* =========================
   VARIABLES
   ========================= */
:root {
    --bg-image: url("../images/photo-1644088379091-d574269d422f.jpeg");
    --bg-color: #0f1116;

    --surface-dark: #282846;
    --surface-darker: #1e1e2f;

    --text: #e0e0e0;
    --muted: #3a3a5c;

    --accent: #00d4ff;
    --accent-2: #ff4081;

    --radius-sm: 8px;
    --radius-md: 12px;

    --spacing-sm: 10px;
    --spacing-md: 20px;

    --sidebar-width: 250px;
    --transition: 0.25s ease;

    --shadow: 0 4px 12px rgba(0,0,0,0.35);
}

/* =========================
   RESET
   ========================= */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    color: var(--text);
}

/* =========================
   BACKGROUND
   ========================= */
body {
    min-height: 100vh;
    background-color: var(--bg-color);
    background-image: var(--bg-image);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;

    display: flex;
    flex-direction: column;
}

/* =========================
   TYPOGRAPHIE
   ========================= */
h1, h2, h3 {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

p {
    line-height: 1.5;
}

/* =========================
   HEADER / FOOTER
   ========================= */
header {
    background: var(--surface-dark);
    padding: 25px;
    text-align: center;
}

footer {
    background: var(--surface-dark);
    padding: 15px;
    margin-top: auto;
    text-align: center;
}

.footer-logo {
    float: left;
    width: 50px;
    margin-left: 10px;
}

/* =========================
   CONTAINER
   ========================= */
.container {
    max-width: 1200px;
    margin: auto;
    padding: var(--spacing-md);
}

/* =========================
   BOUTONS
   ========================= */
button {
    background: var(--surface-dark);
    color: var(--text);
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    cursor: pointer;
    transition: var(--transition);
}

button:hover {
    background: var(--muted);
}

/* =========================
   LIENS
   ========================= */
a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--accent-2);
}

/* =========================
   CARDS (utilisé partout)
   ========================= */
.card {
    background: var(--surface-dark);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
}

/* =========================
   SIDEBAR (NAVBAR)
   ========================= */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;

    width: var(--sidebar-width);
    height: 100%;

    background: rgba(30,30,45,0.95);
    backdrop-filter: blur(10px);

    transform: translateX(-100%);
    transition: var(--transition);

    padding: 80px 20px;
    z-index: 1000;
}

.sidebar.active {
    transform: translateX(0);
}

/* liens navbar */
.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar li {
    margin-bottom: 10px;
}

.sidebar a {
    display: block;
    padding: 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.sidebar a:hover {
    background: rgba(0,212,255,0.1);
    color: var(--accent);
    transform: translateX(5px);
}

/* =========================
   MENU BUTTON
   ========================= */
.menu-toggle {
    position: fixed;
    top: 15px;
    left: 15px;

    width: 48px;
    height: 48px;

    background: var(--surface-darker);
    color: var(--text);

    border: none;
    border-radius: var(--radius-sm);

    font-size: 1.4rem;

    cursor: pointer;
    z-index: 1100;

    display: flex;
    align-items: center;
    justify-content: center;

    transition: var(--transition);
}

.menu-toggle:hover {
    background: var(--muted);
    transform: scale(1.05);
}

/* =========================
   INPUTS
   ========================= */
input, textarea {
    background: var(--surface-darker);
    color: var(--text);
    border: 1px solid var(--muted);
    border-radius: var(--radius-sm);
    padding: 10px;
    width: 100%;
}

/* =========================
   MOBILE
   ========================= */
@media (max-width: 768px) {

    .sidebar {
        width: 100%;
    }

    .container {
        padding: var(--spacing-sm);
    }

    h1, h2, h3 {
        font-size: 1.2rem;
    }

    button {
        padding: 8px 12px;
        font-size: 0.9rem;
    }

    .footer-logo {
        float: none;
        display: block;
        margin: 10px auto;
    }
}