/* ================================================================
   public/css/header.css
   Styles du header — thème clair & sombre
   ================================================================ */

/* ── RESET MINIMAL ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── VARIABLES ─────────────────────────────────────────────────── */
:root {
    --violet:        #7C3AED;
    --violet-light:  #A78BFA;
    --violet-glow:   rgba(124, 58, 237, 0.18);

    --nav-bg-light:  rgba(255, 255, 255, 0.78);
    --nav-bg-dark:   rgba(12, 10, 18, 0.82);

    --text-light:    #1a1625;
    --text-dark:     #ede9f6;
    --muted-light:   #6b7280;
    --muted-dark:    #9ca3af;

    --border-light:  rgba(0, 0, 0, 0.08);
    --border-dark:   rgba(255, 255, 255, 0.08);

    --pill-bg-light: rgba(124, 58, 237, 0.08);
    --pill-bg-dark:  rgba(124, 58, 237, 0.20);
}

/* ── BODY / BACKGROUND ─────────────────────────────────────────── */
html, body {
    min-height: 100vh;
    font-family: 'DM Sans', sans-serif;
    transition: background 0.4s ease;
}
body {
    background-image: url('../images/bg-light.png'); /* assets/images/bg-light.png */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding-top: 64px; /* compense le header fixe */
}
[data-theme="dark"] body {
    background-image: url('../images/bg-dark.png'); /* assets/images/bg-dark.png */
}

/* ── HEADER ────────────────────────────────────────────────────── */
header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: 64px;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;

    background: var(--nav-bg-light);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid var(--border-light);
    transition: background 0.4s ease, border-color 0.4s ease;
}
[data-theme="dark"] header {
    background: var(--nav-bg-dark);
    border-bottom-color: var(--border-dark);
}

/* ── LOGO ──────────────────────────────────────────────────────── */
.logo {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-mark {
    width: 30px;
    height: 30px;
    background: var(--violet);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.logo:hover .logo-mark {
    transform: rotate(-6deg) scale(1.08);
    box-shadow: 0 0 18px var(--violet-glow);
}
.logo-name {
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: var(--text-light);
    transition: color 0.4s ease;
}
[data-theme="dark"] .logo-name { color: var(--text-dark); }

/* ── NAVIGATION ────────────────────────────────────────────────── */
nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    justify-content: center;
}

.nav-link {
    position: relative;
    padding: 0.6rem 1.5rem;
    border-radius: 10px;
    font-family: 'Syne', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted-light);
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.2s ease, background 0.2s ease, transform 0.15s ease;
}
[data-theme="dark"] .nav-link { color: var(--muted-dark); }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 16px;
    height: 2px;
    border-radius: 2px;
    background: var(--violet);
    transition: transform 0.25s ease;
}

.nav-link:hover {
    color: var(--text-light);
    background: rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}
[data-theme="dark"] .nav-link:hover {
    color: var(--text-dark);
    background: rgba(255, 255, 255, 0.07);
}
.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

/* Onglet actif */
.nav-link.active {
    color: var(--violet);
    background: var(--pill-bg-light);
    font-weight: 700;
}
[data-theme="dark"] .nav-link.active {
    color: var(--violet-light);
    background: var(--pill-bg-dark);
}
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}
[data-theme="dark"] .nav-link.active::after {
    background: var(--violet-light);
}

/* Actualité */
.nav-link:has(.badge-dot) {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}
.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--violet);
    flex-shrink: 0;
    animation: pulse-dot 2.5s ease-in-out infinite;
}
[data-theme="dark"] .badge-dot { background: var(--violet-light); }

@keyframes pulse-dot {
    0%, 100% { opacity: 1;   transform: scale(1);   }
    50%       { opacity: 0.5; transform: scale(0.7); }
}

/* ── ACTIONS ───────────────────────────────────────────────────── */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

/* ── BOUTON THÈME ──────────────────────────────────────────────── */
.theme-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border-light);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted-light);
    transition: color 0.25s, background 0.25s, border-color 0.25s, transform 0.3s;
}
[data-theme="dark"] .theme-btn {
    border-color: var(--border-dark);
    color: var(--muted-dark);
}
.theme-btn:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--violet);
    transform: rotate(20deg);
}
[data-theme="dark"] .theme-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--violet-light);
}

/* Icônes soleil / lune */
.icon-sun  { display: block; }
.icon-moon { display: none;  }
[data-theme="dark"] .icon-sun  { display: none;  }
[data-theme="dark"] .icon-moon { display: block; }

/* ── BOUTON CONNEXION ──────────────────────────────────────────── */
.login-btn {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.4rem 1.1rem;
    border-radius: 10px;
    border: 1px solid var(--border-light);
    background: transparent;
    cursor: pointer;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-light);
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
[data-theme="dark"] .login-btn {
    border-color: var(--border-dark);
    color: var(--text-dark);
}
.login-btn:hover {
    background: var(--violet);
    border-color: var(--violet);
    color: #fff;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
}

/* ── DROPDOWN CONNEXION ────────────────────────────────────────── */
.login-wrapper    { position: relative; }

.login-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 260px;
    background: var(--nav-bg-light);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 1.25rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    display: none;
    flex-direction: column;
    gap: 0.75rem;
    animation: dropdown-in 0.2s ease;
}
[data-theme="dark"] .login-dropdown {
    background: var(--nav-bg-dark);
    border-color: var(--border-dark);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}
.login-dropdown.open { display: flex; }

@keyframes dropdown-in {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0);    }
}

/* ── FORMULAIRE DANS LE DROPDOWN ───────────────────────────────── */
.dropdown-title {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-light);
}
[data-theme="dark"] .dropdown-title { color: var(--text-dark); }

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.form-field label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted-light);
}
[data-theme="dark"] .form-field label { color: var(--muted-dark); }

.form-field input {
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border-light);
    background: rgba(0, 0, 0, 0.03);
    padding: 0 0.75rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.875rem;
    color: var(--text-light);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
[data-theme="dark"] .form-field input {
    border-color: var(--border-dark);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-dark);
}
.form-field input:focus {
    border-color: var(--violet);
    box-shadow: 0 0 0 3px var(--violet-glow);
}

.submit-btn {
    width: 100%;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: var(--violet);
    color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
}
.submit-btn:hover {
    background: #6d28d9;
    box-shadow: 0 4px 16px rgba(124, 58, 237, 0.4);
    transform: translateY(-1px);
}

/* ── MOBILE ────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    nav          { display: none; }
    header       { padding: 0 1rem; }
}