/* ═══ Auth Modal & Profile Styles ═══ */

/* Nav auth button */
.btn-auth {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 16px;
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    border: none; color: #fff;
    border-radius: 6px; font-size: 0.85rem;
    cursor: pointer; font-weight: 600;
    transition: opacity 0.2s;
}
.btn-auth:hover { opacity: 0.85; }

/* User menu in nav */
.user-menu {
    display: none; align-items: center; gap: 8px;
    position: relative;
}
.user-menu-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    border: 2px solid var(--border); object-fit: cover;
}
.user-menu-name {
    color: var(--fg); font-size: 0.85rem; max-width: 120px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    cursor: pointer;
}
.user-menu-name:hover { text-decoration: underline; }
.btn-signout {
    padding: 3px 10px; background: transparent; border: 1px solid var(--border);
    color: var(--muted); border-radius: 4px; font-size: 0.75rem;
    cursor: pointer; transition: all 0.2s;
}
.btn-signout:hover { border-color: #ef4444; color: #ef4444; }

/* ═══ Modal ═══ */
.auth-modal-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
    z-index: 10000; align-items: center; justify-content: center;
}
.auth-modal {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; padding: 0; max-width: 420px; width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: modalSlideIn 0.25s ease;
    overflow: hidden;
}
@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(-20px) scale(0.96); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-modal-close {
    position: absolute; top: 12px; right: 16px; z-index: 10;
    background: transparent; border: none; color: var(--muted);
    font-size: 1.3rem; cursor: pointer;
}
.auth-modal-close:hover { color: var(--fg); }

/* Tabs */
.auth-tabs {
    display: flex; border-bottom: 1px solid var(--border);
}
.auth-tab-btn {
    flex: 1; padding: 14px 0; background: transparent; border: none;
    color: var(--muted); font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: all 0.2s;
    border-bottom: 2px solid transparent;
}
.auth-tab-btn:hover { color: var(--fg); }
.auth-tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Tab content */
.auth-tab-content {
    display: none; padding: 28px 32px;
}

.auth-modal h2 {
    font-size: 1.3rem; font-weight: 700; margin-bottom: 6px;
}
.auth-modal .auth-subtitle {
    color: var(--muted); font-size: 0.85rem; margin-bottom: 20px;
}

/* Form inputs */
.auth-input-group {
    margin-bottom: 14px;
}
.auth-input-group label {
    display: block; font-size: 0.8rem; font-weight: 600;
    color: var(--muted); margin-bottom: 4px;
}
.auth-input-group input {
    width: 100%; padding: 10px 12px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 6px; color: var(--fg); font-size: 0.9rem;
    box-sizing: border-box;
    transition: border-color 0.2s;
}
.auth-input-group input:focus {
    outline: none; border-color: var(--accent);
}

/* Submit button */
.btn-submit {
    width: 100%; padding: 11px;
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    border: none; color: #fff; border-radius: 6px;
    font-size: 0.95rem; font-weight: 600; cursor: pointer;
    margin-top: 4px; transition: opacity 0.2s;
}
.btn-submit:hover { opacity: 0.9; }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* Divider */
.auth-divider {
    display: flex; align-items: center; margin: 20px 0; color: var(--muted); font-size: 0.8rem;
}
.auth-divider::before, .auth-divider::after {
    content: ''; flex: 1; border-bottom: 1px solid var(--border);
}
.auth-error { color: #ef4444; font-size: 0.85rem; margin-top: 8px; min-height: 20px; }
.auth-error:empty { display: none; }

/* Forgot password link */
.auth-forgot-link {
    display: block; text-align: right; font-size: 0.85rem;
    color: var(--accent); cursor: pointer; margin-bottom: 12px;
    text-decoration: none;
}
.auth-forgot-link:hover { text-decoration: underline; }

/* OAuth buttons */
.btn-oauth {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    width: 100%; padding: 10px 16px;
    border: 1px solid var(--border); border-radius: 6px;
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    background: var(--surface); color: var(--fg);
    transition: all 0.2s; margin-bottom: 10px;
}
.btn-oauth:hover { border-color: var(--accent); background: rgba(139,92,246,0.08); }
.btn-oauth:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-oauth svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-oauth-google:hover { border-color: #4285f4; }
.btn-oauth-github { background: #24292f; color: #fff; border-color: #24292f; }
.btn-oauth-github:hover { background: #1b1f23; border-color: #1b1f23; }

/* Footer */
.auth-modal-footer {
    padding: 0 32px 20px; text-align: center;
    font-size: 0.7rem; color: var(--muted);
}
.auth-modal-footer a { color: var(--accent); }

/* ═══ Profile Page ═══ */
.profile-container {
    max-width: 680px; margin: 120px auto 60px; padding: 0 24px;
}
.profile-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; padding: 32px;
}
.profile-card h2 { font-size: 1.5rem; margin-bottom: 24px; }
.profile-avatar-section {
    display: flex; align-items: center; gap: 16px; margin-bottom: 24px;
}
.profile-avatar-large {
    width: 72px; height: 72px; border-radius: 50%; object-fit: cover;
    border: 3px solid var(--accent);
}
.profile-field {
    margin-bottom: 16px;
}
.profile-field label {
    display: block; font-size: 0.8rem; font-weight: 600;
    color: var(--muted); margin-bottom: 4px;
}
.profile-field input, .profile-field textarea {
    width: 100%; padding: 10px 12px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 6px; color: var(--fg); font-size: 0.9rem;
    box-sizing: border-box;
}
.profile-field textarea { min-height: 80px; resize: vertical; }
.profile-field input:focus, .profile-field textarea:focus {
    outline: none; border-color: var(--accent);
}
.btn-save-profile {
    padding: 10px 24px;
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    border: none; color: #fff; border-radius: 6px;
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
}
.btn-save-profile:hover { opacity: 0.9; }
.profile-success { color: #22c55e; font-size: 0.85rem; margin-top: 8px; }
.profile-error { color: #ef4444; font-size: 0.85rem; margin-top: 8px; }

/* ═══ Auth Gate — download locked behind login ═══ */
.auth-gated-container { position: relative; overflow: hidden; border-radius: 12px; }
.auth-gated-overlay {
    position: absolute; inset: 0; z-index: 10;
    display: flex; align-items: center; justify-content: center;
    background: rgba(10,10,18,0.88); backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 12px;
    transition: opacity 0.3s ease;
}
.auth-gated-overlay.unlocked { display: none; }
.auth-gate-box {
    text-align: center; padding: 32px 24px; max-width: 360px;
}
.auth-gate-icon { font-size: 48px; margin-bottom: 12px; }
.auth-gate-box h3 { font-size: 22px; margin: 0 0 8px 0; color: #e0e0e0; }
.auth-gate-box p { font-size: 14px; color: #888; margin: 0 0 20px 0; line-height: 1.5; }
.auth-gate-box .btn { font-size: 15px; padding: 12px 28px; }
@media (max-width: 480px) {
    .auth-tab-content { padding: 24px 20px; }
    .auth-modal-footer { padding: 0 20px 16px; }
    .user-menu-name { display: none; }
    .profile-container { margin-top: 100px; }
}

/* Password strength meter */
.pwd-strength-wrap { margin-bottom: 12px; display: none; }
.pwd-strength-label { font-size: 0.75rem; color: var(--fg-dim); }
.pwd-strength-track { height: 4px; background: var(--border); border-radius: 2px; margin-top: 4px; }
.pwd-strength-fill { height: 100%; border-radius: 2px; transition: width 0.3s; width: 0; }
.pwd-strength-fill.s1 { background: #ef4444; }
.pwd-strength-fill.s2 { background: #f59e0b; }
.pwd-strength-fill.s3 { background: #22c55e; }

/* CAPTCHA */
.captcha-wrap { margin-bottom: 16px; }
.captcha-wrap label { display: block; font-size: 0.8rem; color: var(--fg-dim); margin-bottom: 4px; }
.captcha-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.captcha-refresh { font-size: 0.75rem; color: var(--accent); cursor: pointer; white-space: nowrap; }
.captcha-refresh:hover { text-decoration: underline; }
#signup-captcha { width: 100%; padding: 8px 10px; font-size: 0.9rem; letter-spacing: 4px; text-transform: uppercase;
    background: var(--surface); border: 1px solid var(--border); border-radius: 6px; color: var(--fg); box-sizing: border-box; }
#signup-captcha:focus { border-color: var(--accent); outline: none; }
#signin-captcha { width: 100%; padding: 8px 10px; font-size: 0.9rem; letter-spacing: 4px; text-transform: uppercase;
    background: var(--surface); border: 1px solid var(--border); border-radius: 6px; color: var(--fg); box-sizing: border-box; }
#signin-captcha:focus { border-color: var(--accent); outline: none; }