/* ============================================
   ImportPanel v5.0 - Auth Pages (Visual Refresh)
   ============================================ */

/* ---------- Page-level background & fade-in ---------- */
#app-auth.active {
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(30, 58, 95, 0.07) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(217, 119, 6, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(30, 58, 95, 0.04) 0%, transparent 50%),
        linear-gradient(160deg, var(--color-bg) 0%, rgba(237, 242, 247, 0.8) 50%, var(--color-bg) 100%);
    background-attachment: fixed;
    animation: authFadeIn 0.6s ease-out both;
}

/* Subtle dot pattern overlay */
#app-auth::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle, var(--color-border) 0.8px, transparent 0.8px);
    background-size: 28px 28px;
    opacity: 0.25;
    pointer-events: none;
    z-index: 0;
}

@keyframes authFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Container ---------- */
.auth-container {
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 16px;
    position: relative;
    z-index: 1;
    animation: authCardSlideUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}

@keyframes authCardSlideUp {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ---------- Logo icon ---------- */
.auth-logo-icon {
    text-align: center;
    margin-bottom: 16px;
    animation: authLogoFloat 3s ease-in-out infinite;
}

@keyframes authLogoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.auth-logo-icon .logo-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: 0 6px 20px rgba(30, 58, 95, 0.3), 0 2px 6px rgba(30, 58, 95, 0.15);
    font-size: 36px;
    line-height: 1;
    transition: transform 300ms ease, box-shadow 300ms ease;
}

.auth-logo-icon .logo-icon-wrap:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(30, 58, 95, 0.35), 0 2px 8px rgba(30, 58, 95, 0.2);
}

/* ---------- Logo text ---------- */
.auth-logo {
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
    letter-spacing: -0.025em;
}

.auth-logo span {
    color: var(--color-text);
    font-weight: 400;
}

/* ---------- Tagline ---------- */
.auth-tagline {
    text-align: center;
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
}

/* ---------- Subtitle ---------- */
.auth-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 15px;
    margin-bottom: 32px;
    line-height: 1.5;
}

/* ---------- Card ---------- */
.auth-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-light, #ebeef3);
    border-radius: 20px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
    padding: 36px;
}

/* ---------- Auth Tabs (pill style) ---------- */
.auth-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 28px;
    padding: 4px;
    background: var(--color-border-light, #f1f5f9);
    border-radius: 12px;
}

.auth-tab {
    flex: 1;
    padding: 11px 16px;
    text-align: center;
    cursor: pointer;
    border: none;
    background: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all 200ms ease;
    border-radius: 8px;
    position: relative;
}

.auth-tab:hover {
    color: var(--color-text);
    background-color: rgba(0, 0, 0, 0.03);
}

.auth-tab.active {
    color: var(--color-primary);
    background-color: var(--color-surface, #fff);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    font-weight: 600;
}

/* ---------- Auth Form ---------- */
.auth-form .input-group {
    margin-bottom: 20px;
}

.auth-form .input-group:last-of-type {
    margin-bottom: 24px;
}

.auth-form .input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.auth-form .btn {
    width: 100%;
    height: 48px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 12px;
}

.auth-form input {
    height: 48px;
    border-radius: 10px;
    padding: 0 16px;
    font-size: 14px;
    border: 1px solid var(--color-border);
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

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

/* ---------- Password wrapper (for eye toggle) ---------- */
.password-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrap input {
    width: 100%;
    padding-right: 48px;
}

.password-toggle-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 200ms ease, background-color 200ms ease;
    width: 32px;
    height: 32px;
}

.password-toggle-btn:hover {
    color: var(--color-text-secondary);
    background-color: var(--color-border-light, #f1f5f9);
}

.password-toggle-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---------- Remember me checkbox ---------- */
.auth-remember {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    margin-top: -4px;
}

.auth-remember-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    margin-top: -4px;
}

.auth-remember input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
    border-radius: 4px;
}

.auth-remember label {
    font-size: 13px;
    color: var(--color-text-secondary);
    cursor: pointer;
    user-select: none;
    transition: color 200ms ease;
}

.auth-remember label:hover {
    color: var(--color-text);
}

/* ---------- Auth Error ---------- */
.auth-error {
    background-color: rgba(239, 68, 68, 0.06);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: 10px;
    padding: 12px 16px 12px 40px;
    margin-bottom: 20px;
    font-size: 13px;
    line-height: 1.5;
    display: none;
    position: relative;
}

.auth-error::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23dc2626' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='12' y1='8' x2='12' y2='12'/%3E%3Cline x1='12' y1='16' x2='12.01' y2='16'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    flex-shrink: 0;
}

.auth-error.visible {
    display: block;
    animation: authErrorAppear 0.3s ease-out;
}

@keyframes authErrorAppear {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Shake animation for auth card on error */
.auth-card.shake {
    animation: authShake 0.5s ease-in-out;
}

@keyframes authShake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
    20%, 40%, 60%, 80% { transform: translateX(4px); }
}

/* ---------- Auth Links ---------- */
.auth-links {
    text-align: center;
    margin-top: 28px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.auth-links a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    transition: color 200ms ease;
}

.auth-links a:hover {
    text-decoration: underline;
    color: var(--color-primary-hover);
}

/* ---------- Forgot Password Link ---------- */
.auth-forgot {
    text-align: right;
    margin-bottom: 0;
    margin-top: 0;
}

.auth-forgot a {
    font-size: 13px;
    color: var(--color-text-secondary);
    transition: color 200ms ease;
}

.auth-forgot a:hover {
    color: var(--color-primary);
}

/* ---------- Auth success message ---------- */
.auth-success {
    background-color: rgba(5, 150, 105, 0.06);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.15);
    border-radius: 10px;
    padding: 12px 16px 12px 40px;
    margin-bottom: 20px;
    font-size: 13px;
    line-height: 1.5;
    display: none;
    position: relative;
}

.auth-success::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23059669' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'/%3E%3Cpolyline points='22 4 12 14.01 9 11.01'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    flex-shrink: 0;
}

.auth-success.visible {
    display: block;
    animation: authErrorAppear 0.3s ease-out;
}

/* ---------- Inline validation ---------- */
.input-error {
    border-color: var(--color-danger) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.08);
}

.input-valid {
    border-color: var(--color-success) !important;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.08);
}

.field-error {
    color: var(--color-danger);
    font-size: 12px;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.password-strength {
    height: 4px;
    border-radius: 3px;
    margin-top: 8px;
    background: var(--color-border-light, #ebeef3);
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease, background 0.3s ease;
}

.password-strength-label {
    font-size: 11px;
    margin-top: 4px;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ---------- Login button ---------- */
.auth-form .btn-primary {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border: none;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: all 200ms ease;
    box-shadow: 0 2px 8px rgba(30, 58, 95, 0.2);
}

.auth-form .btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%);
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.25);
    transform: translateY(-1px);
}

.auth-form .btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(30, 58, 95, 0.2);
}

.auth-form .btn-primary:disabled {
    opacity: 0.75;
    cursor: not-allowed;
    transform: none;
}

.auth-btn-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: authBtnSpin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 8px;
}

@keyframes authBtnSpin {
    to { transform: rotate(360deg); }
}

/* ---------- Footer ---------- */
.auth-footer {
    text-align: center;
    margin-top: 36px;
    font-size: 12px;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    #app-auth,
    .auth-container,
    .auth-card.shake,
    .auth-error.visible,
    .auth-success.visible,
    .auth-btn-spinner {
        animation: none !important;
    }

    .auth-logo-icon {
        animation: none !important;
    }

    .auth-form .btn-primary {
        transition: none;
    }

    .auth-logo-icon .logo-icon-wrap {
        transition: none;
    }
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
    .auth-container {
        padding: 20px 16px;
    }

    .auth-card {
        padding: 24px 20px;
        border-radius: 16px;
    }

    .auth-logo {
        font-size: 24px;
    }

    .auth-logo-icon .logo-icon-wrap {
        width: 60px;
        height: 60px;
        font-size: 30px;
        border-radius: 16px;
    }

    .auth-tagline {
        font-size: 11px;
    }

    .auth-form input {
        height: 44px;
    }

    .auth-form .btn {
        height: 44px;
        border-radius: 10px;
    }

    .auth-tabs {
        border-radius: 10px;
    }

    .auth-tab {
        border-radius: 7px;
        padding: 9px 12px;
        font-size: 13px;
    }

    .auth-remember-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

/* ============================================
   Dark Mode Overrides
   ============================================ */

[data-theme="dark"] #app-auth {
    background:
        radial-gradient(ellipse at 20% 50%, rgba(79, 143, 247, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(245, 158, 11, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(79, 143, 247, 0.03) 0%, transparent 50%),
        linear-gradient(160deg, var(--color-bg) 0%, rgba(26, 26, 46, 0.8) 50%, var(--color-bg) 100%);
}

[data-theme="dark"] #app-auth::before {
    background-image: radial-gradient(circle, var(--color-border) 0.8px, transparent 0.8px);
    opacity: 0.12;
}

[data-theme="dark"] .auth-logo-icon .logo-icon-wrap {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: 0 6px 20px rgba(79, 143, 247, 0.25), 0 2px 6px rgba(79, 143, 247, 0.15);
}

[data-theme="dark"] .auth-card {
    background-color: var(--color-surface);
    border-color: var(--color-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.03);
}

[data-theme="dark"] .auth-tabs {
    background: var(--color-border, #2a2a42);
}

[data-theme="dark"] .auth-tab:hover {
    color: var(--color-text);
    background-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .auth-tab.active {
    color: var(--color-primary);
    background-color: var(--color-surface, #1a1a2e);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .auth-form input {
    background-color: var(--color-bg-secondary, #151528);
    border-color: var(--color-border, #2a2a42);
    color: var(--color-text);
}

[data-theme="dark"] .auth-form input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 143, 247, 0.15);
}

[data-theme="dark"] .password-toggle-btn {
    color: var(--color-text-muted);
}

[data-theme="dark"] .password-toggle-btn:hover {
    color: var(--color-text-secondary);
    background-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .auth-error {
    background-color: rgba(220, 38, 38, 0.08);
    border-color: rgba(239, 68, 68, 0.15);
}

[data-theme="dark"] .auth-error::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ef4444' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='12' y1='8' x2='12' y2='12'/%3E%3Cline x1='12' y1='16' x2='12.01' y2='16'/%3E%3C/svg%3E");
}

[data-theme="dark"] .auth-success {
    background-color: rgba(5, 150, 105, 0.08);
    border-color: rgba(34, 197, 94, 0.15);
}

[data-theme="dark"] .auth-success::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2334d399' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'/%3E%3Cpolyline points='22 4 12 14.01 9 11.01'/%3E%3C/svg%3E");
}

[data-theme="dark"] .auth-remember label {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .auth-form .btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #3b7ae8 100%);
    box-shadow: 0 2px 8px rgba(79, 143, 247, 0.25);
}

[data-theme="dark"] .auth-form .btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary) 100%);
    box-shadow: 0 4px 16px rgba(79, 143, 247, 0.3);
}

[data-theme="dark"] .password-strength {
    background: var(--color-border, #2a2a42);
}

[data-theme="dark"] .auth-footer {
    color: var(--color-text-muted);
}

[data-theme="dark"] .auth-btn-spinner {
    border-color: rgba(255, 255, 255, 0.2);
    border-top-color: #ffffff;
}