/* ===================================================================
   O2Life | صفحه ورود و ثبت‌نام
=================================================================== */

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 24px;
    background: radial-gradient(circle at 50% 30%, #0d1714 0%, var(--bg-base) 70%);
}

/* ---------- حلقه تنفس: سیگنیچر این صفحه ---------- */
.breath-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 560px;
    height: 560px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(57, 255, 142, 0.18);
    animation: breathe 6s ease-in-out infinite;
    pointer-events: none;
}

.breath-ring::before,
.breath-ring::after {
    content: '';
    position: absolute;
    inset: 40px;
    border-radius: 50%;
    border: 1px solid rgba(79, 209, 255, 0.12);
    animation: breathe 6s ease-in-out infinite;
    animation-delay: 0.6s;
}

.breath-ring::after {
    inset: 90px;
    border-color: rgba(57, 255, 142, 0.1);
    animation-delay: 1.2s;
}

.breath-ring__core {
    position: absolute;
    inset: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--neon-green-dim), transparent 70%);
    filter: blur(6px);
    animation: breathe 6s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% { transform: scale(0.92); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 1; }
}

/* ---------- کارت اصلی ---------- */
.auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 40px 32px;
    text-align: center;
}

.auth-logo {
    display: inline-block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.auth-logo i {
    font-style: normal;
    color: var(--neon-green);
}

.auth-tabs {
    display: flex;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-sm);
    padding: 5px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    padding: 11px 0;
    border-radius: 9px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.auth-tab.is-active {
    background: var(--neon-green);
    color: #06140c;
}

.auth-error {
    background: var(--coral-dim);
    color: var(--coral);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 0.85rem;
    margin-bottom: 16px;
    text-align: right;
}

.auth-form {
    display: none;
    flex-direction: column;
    gap: 16px;
}

.auth-form.is-active {
    display: flex;
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: right;
}

.auth-field span {
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.auth-field input {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 13px 16px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color 0.25s ease, background 0.25s ease;
}

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

.auth-field input:focus {
    border-color: var(--neon-green);
    background: rgba(57, 255, 142, 0.05);
    outline: none;
}

.auth-submit {
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    color: #06140c;
    font-weight: 700;
    font-size: 1rem;
    padding: 14px 0;
    border-radius: var(--radius-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px var(--neon-green-dim);
}

.auth-submit svg {
    transform: scaleX(-1);
}

.auth-hint {
    margin-top: 22px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

@media (max-width: 480px) {
    .auth-card {
        padding: 32px 22px;
    }
    .breath-ring {
        width: 340px;
        height: 340px;
    }
}