/* ─── LOGIN BODY ─── */
.login-body {
    font-family: 'Syne', sans-serif;
    background-color: var(--bg);
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ─── FOND ANIMÉ ─── */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--accent-rgb), 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--accent-rgb), 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    top: 30%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.12) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: pulse-glow 4s ease-in-out infinite;
}

[data-theme="light"] .bg-grid {
    background-image:
        linear-gradient(rgba(var(--accent-rgb), 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--accent-rgb), 0.08) 1px, transparent 1px);
}

[data-theme="light"] .bg-glow {
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.08) 0%, transparent 70%);
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
    50%       { opacity: 1;   transform: translateX(-50%) scale(1.1); }
}

/* ─── WRAPPER ─── */
.login-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 54px);
    padding: 2rem 1rem;
}

/* ─── CARD ─── */
.login-card {
    background: var(--card);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-lg);
    animation: card-in var(--transition) both;
}

[data-theme="light"] .login-card {
    box-shadow: var(--shadow-card);
}

@keyframes card-in {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── MODE TOGGLE ─── */
.mode-toggle {
    display: flex;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-sm);
    padding: 4px;
    margin-bottom: 1.5rem;
    gap: 4px;
}

.mode-btn {
    flex: 1;
    background: none;
    border: none;
    color: #888;
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    padding: 0.5rem;
    border-radius: 7px;
    cursor: pointer;
    transition: all 0.25s;
}

.mode-btn.active {
    background: var(--accent);
    color: var(--accent-contrast);
}

/* ─── SUBTITLE ─── */
.login-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0 0 1.5rem 0;
    font-family: 'DM Mono', monospace;
}

/* ─── CHAMPS ─── */
.field-group {
    margin-bottom: 1.1rem;
}

.field-group label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.field-group input {
    width: 100%;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text);
    font-family: 'DM Mono', monospace;
    font-size: 0.9rem;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    display: block;
    margin: 0;
}

.field-group input:focus {
    border-color: var(--accent);
    box-shadow: var(--focus-ring);
}

.field-group input::placeholder {
    color: var(--text-muted);
}

[data-theme="light"] .field-group input {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.1);
}

[data-theme="light"] .mode-toggle {
    background: rgba(0,0,0,0.05);
}

/* ─── PASSWORD ─── */
.input-password-wrap {
    position: relative;
}

.input-password-wrap input {
    padding-right: 2.8rem;
}

.eye-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    opacity: 0.5;
    transition: opacity 0.2s;
    padding: 0;
}

.eye-btn:hover { opacity: 1; }

[data-theme="light"] .eye-btn {
    color: #333;
    opacity: 0.8;
}

/* ─── ERREURS ─── */
.error-msg {
    display: block;
    color: #ff6b6b;
    font-size: 0.75rem;
    font-family: 'DM Mono', monospace;
    margin-top: 0.3rem;
    min-height: 1rem;
}

.global-error {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
}

/* ─── BOUTON ─── */
.login-btn {
    width: 100%;
    padding: 0.85rem;
    background: var(--accent);
    color: var(--accent-contrast);
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Syne', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: background var(--transition), transform var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 2px 8px rgba(var(--accent-rgb),0.22);
}

.login-btn:hover {
    background: var(--accent-2);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(var(--accent-rgb),0.28);
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn:disabled {
    cursor: default;
    opacity: 0.5;
    transform: none;
    box-shadow: none;
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btn-spin 0.65s linear infinite;
    flex-shrink: 0;
    display: none;
}
.login-btn.is-loading .btn-spinner { display: inline-block; }
.login-btn.is-loading .btn-label-text { opacity: 0.85; }
@keyframes btn-spin { to { transform: rotate(360deg); } }

/* ─── WELCOME SCREEN ─── */
.welcome-screen {
    text-align: center;
    color: var(--text);
}

.welcome-screen.hidden { display: none; }

.text-wrapper {
    display: block;
    margin: 0;
    line-height: 1.4;
    font-family: 'Syne', sans-serif;
}

.letter {
    display: inline-block;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.letter.visible { opacity: 1; }

#line2 {
    color: var(--accent);
    font-size: 2.5em;
    font-weight: 700;
    margin-top: 10px;
}

.welcome-screen {
    transition: opacity 1.5s ease-in-out;
}

.welcome-screen.fade-out { opacity: 0; }

/* ─── TRANSITION CHAMP ─── */
.field-slide {
    animation: slide-down var(--transition) both;
}

@keyframes slide-down {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── LEGAL NOTE (age + privacy link) ─── */
.login-legal {
    margin: 1rem 0 0;
    text-align: center;
    font-family: 'DM Mono', monospace;
    font-size: 0.68rem;
    line-height: 1.6;
    color: var(--text-muted);
}

.login-legal a {
    color: var(--accent);
    text-decoration: underline;
}

/* ─── MOBILE LOGIN ─── */
@media (max-width: 768px) {
    .login-wrapper {
        align-items: flex-start;
        padding: 1.5rem 1rem;
        min-height: calc(100vh - 54px);
    }

    .login-card {
        padding: 1.8rem 1.2rem;
        border-radius: var(--radius-md);
    }

    .bg-glow {
        width: 300px;
        height: 300px;
    }
}