/* ============================================
   AUTH PAGE — PhoneGuard
   ============================================ */

/* Reset page layout pour auth */
body {
    min-height: 100vh;
}

.auth-main {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 90px 24px 40px;
    overflow: hidden;
}

/* Background */
.auth-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.auth-bg-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 15% 40%, rgba(253, 232, 238, 0.95) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 20%, rgba(244, 160, 181, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 85%, rgba(212, 165, 116, 0.08) 0%, transparent 50%),
        var(--cream);
}

.auth-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(244, 160, 181, 0.12);
    animation: authCircleFloat 8s ease-in-out infinite;
}

.auth-circle.c1 {
    width: 500px;
    height: 500px;
    top: -150px;
    right: -100px;
    background: radial-gradient(circle, rgba(244, 160, 181, 0.04) 0%, transparent 70%);
    animation-delay: 0s;
}

.auth-circle.c2 {
    width: 350px;
    height: 350px;
    bottom: -80px;
    left: -80px;
    background: radial-gradient(circle, rgba(212, 165, 116, 0.04) 0%, transparent 70%);
    animation-delay: 2s;
}

.auth-circle.c3 {
    width: 200px;
    height: 200px;
    top: 30%;
    left: 30%;
    background: radial-gradient(circle, rgba(244, 160, 181, 0.03) 0%, transparent 70%);
    animation-delay: 4s;
}

@keyframes authCircleFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.02); }
}

/* Container principal */
.auth-container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    max-width: 1000px;
    width: 100%;
    min-height: 620px;
    border-radius: 28px;
    overflow: hidden;
    box-shadow:
        0 40px 100px rgba(244, 160, 181, 0.18),
        0 20px 40px rgba(0, 0, 0, 0.08);
}

/* ============================================
   LEFT PANEL
   ============================================ */
.auth-panel {
    background: linear-gradient(160deg, var(--dark) 0%, #3D2D4A 50%, var(--rose-dark) 100%);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.auth-panel-content {
    position: relative;
    z-index: 1;
}

.auth-panel-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 36px;
}

.auth-panel-logo .logo-text {
    color: white;
    font-size: 20px;
}

.auth-panel-logo .logo-icon {
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.auth-panel-title {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 800;
    color: white;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.auth-panel-title span {
    background: linear-gradient(135deg, var(--rose), #FFB0C8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-panel-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 280px;
}

/* Features list */
.auth-panel-features {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 40px;
}

.auth-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.auth-feature-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rose);
    font-size: 15px;
    flex-shrink: 0;
    transition: var(--transition);
}

.auth-feature:hover .auth-feature-icon {
    background: rgba(244, 160, 181, 0.2);
    transform: scale(1.08);
}

.auth-feature div strong {
    display: block;
    color: white;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.auth-feature div span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* Stats */
.auth-panel-stats {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

.auth-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
}

.auth-stat strong {
    font-size: 18px;
    font-weight: 800;
    color: white;
    letter-spacing: -0.5px;
}

.auth-stat span {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.45);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auth-stat-divider {
    width: 1px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
}

/* Decoration */
.auth-panel-decoration {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.auth-deco-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.auth-deco-circle.d1 {
    width: 350px;
    height: 350px;
    top: -120px;
    right: -100px;
    background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
}

.auth-deco-circle.d2 {
    width: 240px;
    height: 240px;
    bottom: -80px;
    left: -60px;
    background: radial-gradient(circle, rgba(244,160,181,0.07) 0%, transparent 70%);
}

/* ============================================
   RIGHT FORMS
   ============================================ */
.auth-forms {
    background: white;
    padding: 44px 48px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* Back link */
.btn-back-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(244, 160, 181, 0.08);
    border: 1px solid rgba(244, 160, 181, 0.2);
    border-radius: 50px;
    color: var(--dark-light);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-back-home:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateX(-3px);
}

/* TAB SWITCHER */
.auth-tabs {
    display: flex;
    gap: 0;
    background: var(--cream);
    border-radius: 14px;
    padding: 5px;
    margin-bottom: 32px;
    position: relative;
    border: 1px solid rgba(244, 160, 181, 0.12);
}

.auth-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 16px;
    border: none;
    background: transparent;
    color: var(--gray);
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    white-space: nowrap;
}

.auth-tab i {
    font-size: 12px;
}

.auth-tab.active {
    color: white;
}

.auth-tab-indicator {
    position: absolute;
    top: 5px;
    left: 5px;
    height: calc(100% - 10px);
    width: calc(50% - 5px);
    background: var(--gradient);
    border-radius: 9px;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 0;
    box-shadow: 0 4px 16px rgba(244, 160, 181, 0.35);
}

.auth-tab-indicator.right {
    transform: translateX(calc(100% + 0px));
}

/* Form wrappers */
.auth-form-wrapper {
    display: none;
    flex-direction: column;
    flex: 1;
    animation: authFormIn 0.4s ease-out;
}

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

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

/* Form header */
.auth-form-header {
    margin-bottom: 28px;
}

.auth-form-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 26px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.auth-form-header p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.5;
}

/* Form rows */
.auth-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

/* Form groups */
.auth-form-group {
    position: relative;
    margin-bottom: 18px;
}

.auth-form-group input {
    width: 100%;
    padding: 16px 48px 16px 20px;
    border: 2px solid rgba(244, 160, 181, 0.2);
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    color: var(--dark);
    background: var(--cream);
    transition: var(--transition);
    outline: none;
}

.auth-form-group input:focus {
    border-color: var(--rose);
    background: white;
    box-shadow: 0 0 0 4px rgba(244, 160, 181, 0.1);
}

.auth-form-group label {
    position: absolute;
    left: 20px;
    top: 16px;
    font-size: 14px;
    color: var(--gray);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: transparent;
    padding: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 6px;
}

.auth-form-group label i {
    font-size: 12px;
    opacity: 0.6;
}

.auth-form-group input:focus ~ label,
.auth-form-group input:not(:placeholder-shown) ~ label {
    top: -9px;
    left: 14px;
    font-size: 11px;
    font-weight: 600;
    color: var(--rose-dark);
    background: white;
    padding: 0 6px;
}

.auth-form-group input:not(:placeholder-shown) ~ label {
    background: var(--cream);
}

.auth-form-group input:focus ~ label {
    background: white;
}

/* Validation states */
.auth-form-group.success input {
    border-color: #2ecc71;
}

.auth-form-group.error input {
    border-color: #e74c3c;
    background: #fef8f8;
}

.auth-form-group.success label,
.auth-form-group.error ~ label {
    color: var(--rose-dark);
}

/* Field icons */
.auth-field-icon {
    position: absolute;
    right: 48px;
    top: 17px;
    font-size: 14px;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: none;
}

.auth-form-group.success .auth-field-icon {
    opacity: 1;
    transform: scale(1);
    color: #2ecc71;
}

.auth-form-group.success .auth-field-icon::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.auth-form-group.error .auth-field-icon {
    opacity: 1;
    transform: scale(1);
    color: #e74c3c;
}

.auth-form-group.error .auth-field-icon::before {
    content: '\f06a';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

/* Toggle password */
.auth-toggle-pwd {
    position: absolute;
    right: 16px;
    top: 14px;
    background: none;
    border: none;
    color: var(--gray);
    font-size: 15px;
    cursor: pointer;
    padding: 4px;
    transition: var(--transition);
    z-index: 2;
}

.auth-toggle-pwd:hover {
    color: var(--rose-dark);
}

/* Error messages */
.auth-error {
    display: none;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: #e74c3c;
    margin-top: 6px;
    padding-left: 4px;
    font-weight: 500;
}

.auth-error i {
    font-size: 11px;
}

.auth-form-group.error .auth-error {
    display: flex;
    animation: shakeError 0.4s ease;
}

/* Password strength */
.password-strength {
    margin-top: 8px;
    display: none;
}

.password-strength.visible {
    display: block;
}

.pwd-bar {
    height: 4px;
    background: rgba(244, 160, 181, 0.12);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 5px;
}

.pwd-fill {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: all 0.4s ease;
    background: var(--gradient);
}

.pwd-fill.weak { width: 33%; background: linear-gradient(135deg, #e74c3c, #c0392b); }
.pwd-fill.medium { width: 66%; background: linear-gradient(135deg, #e67e22, #f39c12); }
.pwd-fill.strong { width: 100%; background: linear-gradient(135deg, #2ecc71, #27ae60); }

.pwd-label {
    font-size: 11px;
    color: var(--gray);
    font-weight: 500;
}

/* Form options (remember me + forgot) */
.auth-form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

/* Checkbox custom */
.auth-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 13px;
    color: var(--dark-light);
    user-select: none;
}

.auth-checkbox input {
    display: none;
}

.auth-checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(244, 160, 181, 0.3);
    border-radius: 5px;
    background: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.auth-checkbox input:checked ~ .auth-checkmark {
    background: var(--gradient);
    border-color: transparent;
}

.auth-checkbox input:checked ~ .auth-checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 10px;
    color: white;
}

.auth-cgu {
    margin-bottom: 20px;
    align-items: flex-start;
}

.auth-cgu a {
    color: var(--rose-dark);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 2px;
}

.auth-forgot {
    font-size: 13px;
    color: var(--rose-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.auth-forgot:hover {
    color: var(--rose);
    text-decoration: underline;
}

/* Submit button */
.auth-btn-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 28px;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-bounce);
    box-shadow: 0 8px 28px rgba(244, 160, 181, 0.35);
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}

.auth-btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 60%);
    opacity: 0;
    transition: var(--transition);
}

.auth-btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(244, 160, 181, 0.45);
}

.auth-btn-submit:hover::before {
    opacity: 1;
}

.auth-btn-text,
.auth-btn-icon {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.auth-btn-loader {
    position: absolute;
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 0.3s ease, transform 0.3s ease;
    font-size: 18px;
}

.auth-btn-submit.loading .auth-btn-text,
.auth-btn-submit.loading .auth-btn-icon {
    opacity: 0;
    transform: translateY(10px);
}

.auth-btn-submit.loading .auth-btn-loader {
    opacity: 1;
    transform: scale(1);
}

.auth-btn-submit.loading {
    pointer-events: none;
    opacity: 0.85;
}

/* Divider */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(244, 160, 181, 0.2);
}

.auth-divider span {
    font-size: 12px;
    color: var(--gray);
    white-space: nowrap;
    font-weight: 500;
}

/* Social buttons */
.auth-social-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.auth-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: 2px solid rgba(244, 160, 181, 0.15);
    border-radius: 10px;
    background: var(--cream);
    color: var(--dark);
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.auth-social-btn:hover {
    border-color: var(--rose);
    background: var(--rose-pastel);
    transform: translateY(-2px);
}

.auth-social-btn i {
    font-size: 16px;
}

.auth-social-btn.google i { color: #DB4437; }
.auth-social-btn.apple i { color: var(--dark); }

/* Switch hint */
.auth-switch-hint {
    text-align: center;
    font-size: 13px;
    color: var(--gray);
    margin-top: auto;
    padding-top: 8px;
}

.auth-switch-hint a {
    color: var(--rose-dark);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.auth-switch-hint a:hover {
    color: var(--rose);
    text-decoration: underline;
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] .auth-bg-gradient {
    background:
        radial-gradient(ellipse at 15% 40%, rgba(42, 31, 38, 0.95) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 20%, rgba(212, 135, 155, 0.08) 0%, transparent 50%),
        var(--cream);
}

[data-theme="dark"] .auth-forms {
    background: var(--cream-dark);
}

[data-theme="dark"] .auth-tabs {
    background: var(--cream);
    border-color: rgba(212, 135, 155, 0.1);
}

[data-theme="dark"] .auth-form-group input {
    background: var(--cream);
    border-color: rgba(212, 135, 155, 0.15);
    color: var(--dark);
}

[data-theme="dark"] .auth-form-group input:focus {
    background: var(--cream-dark);
    border-color: var(--rose);
}

[data-theme="dark"] .auth-form-group label {
    color: var(--gray);
}

[data-theme="dark"] .auth-form-group input:focus ~ label,
[data-theme="dark"] .auth-form-group input:not(:placeholder-shown) ~ label {
    background: var(--cream-dark);
    color: var(--rose-dark);
}

[data-theme="dark"] .auth-form-header h3 {
    color: var(--dark);
}

[data-theme="dark"] .auth-social-btn {
    background: var(--cream);
    border-color: rgba(212, 135, 155, 0.15);
    color: var(--dark);
}

[data-theme="dark"] .auth-checkmark {
    background: var(--cream);
    border-color: rgba(212, 135, 155, 0.3);
}

[data-theme="dark"] .btn-back-home {
    border-color: rgba(212, 135, 155, 0.2);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .auth-container {
        grid-template-columns: 1fr;
        max-width: 500px;
        min-height: auto;
    }

    .auth-panel {
        padding: 36px 32px;
    }

    .auth-panel-title {
        font-size: 28px;
    }

    .auth-panel-features {
        display: none;
    }

    .auth-panel-stats {
        justify-content: center;
    }
}

@media (max-width: 540px) {
    .auth-main {
        padding: 80px 16px 32px;
    }

    .auth-container {
        border-radius: 20px;
    }

    .auth-forms {
        padding: 32px 24px;
    }

    .auth-form-row {
        grid-template-columns: 1fr;
    }

    .auth-social-btns {
        grid-template-columns: 1fr;
    }
}