/* ==========================================
   CHALKBOARD — Auth Pages Styles
   Shared between login.html & register.html
   ========================================== */

:root {
    --primary: #6C5CE7;
    --primary-light: #a29bfe;
    --primary-dark: #4834d4;
    --primary-glow: rgba(108, 92, 231, 0.35);

    --accent: #00cec9;
    --accent-light: #81ecec;
    --accent-dark: #00b894;

    --success: #00b894;
    --success-light: rgba(0, 184, 148, 0.15);
    --warning: #fdcb6e;
    --warning-light: rgba(253, 203, 110, 0.15);
    --danger: #e17055;
    --danger-light: rgba(225, 112, 85, 0.15);

    --bg-primary: #060612;
    --bg-secondary: #0d0d20;
    --bg-card: rgba(18, 18, 45, 0.65);
    --bg-input: rgba(255, 255, 255, 0.04);

    --text-primary: #f0f0ff;
    --text-secondary: #9a9abf;
    --text-muted: #5a5a80;

    --border-color: rgba(255, 255, 255, 0.07);
    --glass-bg: rgba(16, 16, 40, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
.hidden { display: none !important; }

/* ==========================================
   BACKGROUND
   ========================================== */
.auth-bg-shapes {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: rgba(108, 92, 231, 0.1);
    top: -150px;
    right: -100px;
    animation: orbFloat 12s ease-in-out infinite;
}

.shape-2 {
    width: 350px;
    height: 350px;
    background: rgba(0, 206, 201, 0.07);
    bottom: -80px;
    left: -80px;
    animation: orbFloat 15s ease-in-out infinite reverse;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(253, 203, 110, 0.05);
    top: 50%;
    left: 40%;
    animation: orbFloat 18s ease-in-out infinite 3s;
}

.auth-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 92, 231, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 92, 231, 0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.3) 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.3) 0%, transparent 70%);
}

/* ==========================================
   BACK LINK
   ========================================== */
.auth-back-link {
    position: fixed;
    top: 24px;
    left: 32px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    z-index: 100;
}

.auth-back-link:hover {
    color: var(--text-primary);
    border-color: var(--primary-light);
    background: rgba(108, 92, 231, 0.08);
    transform: translateX(-2px);
}

/* ==========================================
   MAIN CONTAINER — SPLIT PANEL
   ========================================== */
.auth-container {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
    z-index: 1;
}

/* ---- Left Panel ---- */
.auth-panel-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px 64px;
    animation: fadeInUp 0.8s ease;
}

.auth-brand {
    margin-bottom: 48px;
}

.auth-brand-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    margin-bottom: 24px;
    box-shadow: 0 8px 30px var(--primary-glow);
    animation: float 3s ease-in-out infinite;
}

.auth-brand h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 48px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    margin-bottom: 8px;
}

.auth-tagline {
    font-size: 17px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.auth-features-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.auth-feature-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.auth-feature-item:hover {
    border-color: rgba(108, 92, 231, 0.2);
    transform: translateX(4px);
}

.auth-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(108, 92, 231, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--primary-light);
    flex-shrink: 0;
}

.auth-feature-item:nth-child(2) .auth-feature-icon {
    background: rgba(0, 206, 201, 0.12);
    color: var(--accent-light);
}

.auth-feature-item:nth-child(3) .auth-feature-icon {
    background: rgba(0, 184, 148, 0.12);
    color: var(--success);
}

.auth-feature-item strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 2px;
}

.auth-feature-item span {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---- Right Panel ---- */
.auth-panel-right {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    animation: fadeInRight 0.8s ease 0.2s both;
}

/* ==========================================
   GLASS CARD
   ========================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
}

.auth-card {
    width: 100%;
    max-width: 480px;
    padding: 40px 36px;
}

.auth-card-header {
    margin-bottom: 28px;
}

.auth-card-header h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 6px;
}

.auth-card-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Auth Gate */
.auth-gate-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(108, 92, 231, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary-light);
    margin: 0 auto 20px;
}

/* Admin Badge */
.admin-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid rgba(108, 92, 231, 0.2);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    margin-top: 12px;
}

.admin-badge-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    padding: 2px 6px;
    border-radius: 4px;
    transition: var(--transition-fast);
    margin-left: 4px;
}

.admin-badge-logout:hover {
    color: var(--danger);
    background: var(--danger-light);
}

/* ==========================================
   ROLE SELECTOR (Login)
   ========================================== */
.auth-role-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 24px;
}

.auth-role-btn {
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 10px;
    cursor: pointer;
    text-align: center;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.auth-role-btn:hover {
    border-color: var(--primary-light);
    background: rgba(108, 92, 231, 0.08);
    transform: translateY(-2px);
}

.auth-role-btn.selected {
    border-color: var(--primary);
    background: rgba(108, 92, 231, 0.15);
    box-shadow: 0 0 20px var(--primary-glow);
}

.auth-role-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
}

.auth-role-btn span {
    font-weight: 600;
    font-size: 13px;
}

.auth-role-btn small {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.2;
}

/* ==========================================
   ROLE TOGGLE (Register)
   ========================================== */
.register-role-toggle {
    display: flex;
    gap: 8px;
    background: var(--bg-input);
    padding: 5px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.register-toggle-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    padding: 12px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.register-toggle-btn:hover {
    color: var(--text-primary);
}

.register-toggle-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 10px var(--primary-glow);
}

/* ==========================================
   FORMS
   ========================================== */
.auth-form {
    animation: fadeInUp 0.4s ease;
}

.form-group {
    margin-bottom: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.form-group label i {
    margin-right: 6px;
    color: var(--primary-light);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-input);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(108, 92, 231, 0.04);
}

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

/* ==========================================
   BUTTONS
   ========================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px var(--primary-glow);
    width: 100%;
    margin-top: 4px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

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

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    box-shadow: 0 4px 15px rgba(0, 206, 201, 0.3);
}

.btn-accent:hover {
    box-shadow: 0 8px 25px rgba(0, 206, 201, 0.35);
}

/* ==========================================
   FORM STATUS / ERROR
   ========================================== */
.form-error {
    margin-top: 16px;
    padding: 14px 18px;
    background: var(--danger-light);
    border: 1px solid rgba(225, 112, 85, 0.3);
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 13px;
    font-weight: 500;
    animation: fadeInUp 0.3s ease;
}

.form-status {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    animation: fadeInUp 0.3s ease;
}

.form-status-success {
    background: var(--success-light);
    border: 1px solid rgba(0, 184, 148, 0.3);
    color: var(--success);
}

.form-status-error {
    background: var(--danger-light);
    border: 1px solid rgba(225, 112, 85, 0.3);
    color: var(--danger);
}

/* ==========================================
   CARD FOOTER
   ========================================== */
.auth-card-footer {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.auth-card-footer p {
    font-size: 13px;
    color: var(--text-muted);
}

.auth-card-footer span {
    color: var(--text-secondary);
}

.auth-footer-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
    transition: var(--transition-fast);
}

.auth-footer-link:hover {
    color: var(--accent-light);
    transform: translateX(-2px);
}

/* ==========================================
   TOAST NOTIFICATIONS
   ========================================== */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow);
    font-size: 14px;
    color: var(--text-primary);
    animation: slideIn 0.3s ease;
    min-width: 280px;
}

.toast-icon { font-size: 18px; flex-shrink: 0; }
.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--danger); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-info .toast-icon { color: var(--primary-light); }

.toast-exit {
    animation: slideOut 0.3s ease forwards;
}

/* ==========================================
   SUCCESS OVERLAY
   ========================================== */
.success-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.success-content {
    text-align: center;
    animation: scaleIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.success-checkmark {
    font-size: 72px;
    color: var(--success);
    margin-bottom: 16px;
    animation: checkPop 0.5s ease 0.2s both;
}

.success-content h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
}

.success-content p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
}

@keyframes scaleIn {
    from { transform: scale(0.6); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes checkPop {
    0% { transform: scale(0); }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
    }

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

    .auth-panel-right {
        padding: 80px 24px 40px;
        align-items: flex-start;
    }

    .auth-card {
        max-width: 520px;
    }
}

@media (max-width: 600px) {
    .auth-panel-right {
        padding: 72px 16px 32px;
    }

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

    .auth-role-selector {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .auth-role-btn {
        flex-direction: row;
        padding: 14px 16px;
        gap: 12px;
        text-align: left;
    }

    .auth-role-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .auth-role-btn small {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .auth-back-link {
        top: 16px;
        left: 16px;
        padding: 8px 14px;
        font-size: 12px;
    }
}