:root {
    --monday-primary: #6B5BFF;
    --monday-primary-hover: #5B4BEF;
    --monday-primary-light: #F0EEFF;
    --monday-dark: #0F0F14;
    --monday-text: #323338;
    --monday-text-secondary: #676879;
    --monday-text-muted: #9699A6;
    --monday-border: #E6E9EF;
    --monday-bg: #FFFFFF;
    --monday-bg-alt: #F8F9FA;
    --monday-radius: 8px;
    --monday-radius-lg: 12px;
    --monday-shadow: 0 2px 8px rgba(0,0,0,0.06);
    --monday-shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
     /* Legacy */
    --primary: #6B5BFF;
    --primary-dark: #5B4BEF;
    --accent-green: #00CA72;
    --accent-red: #E2445C;
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--monday-bg);
    color: var(--monday-text);
    overflow-x: hidden;
}

/* ==================== LOGIN PAGE (Monday.com style) ==================== */
.login-page {
    min-height: 100vh;
    display: flex;
    background: var(--monday-dark);
    position: relative;
    overflow: hidden;
}

/* Monday.com grid pattern */
.login-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(107,91,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(107,91,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

.login-page::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(107,91,255,0.15) 0%, transparent 40%, transparent 60%, rgba(75,75,241,0.08) 100%);
    pointer-events: none;
    z-index: 0;
}

.login-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px 80px;
    position: relative;
    z-index: 1;
    color: white;
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 80px;
}

.login-brand-icon {
    width: 44px;
    height: 44px;
    background: var(--monday-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: white;
    box-shadow: 0 4px 14px rgba(107,91,255,0.4);
}

.login-brand-text {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.login-left h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1.2px;
}

.login-left h1 span {
    background: linear-gradient(135deg, #00CA72, #FDAB3D);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-left p {
    font-size: 17px;
    opacity: 0.8;
    line-height: 1.7;
    max-width: 420px;
}

.login-features {
    margin-top: 56px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.login-feature {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 15px;
    opacity: 0.9;
}

.login-feature i {
    width: 40px;
    height: 40px;
    background: rgba(107,91,255,0.2);
    border: 1px solid rgba(107,91,255,0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: rgba(255,255,255,0.95);
}

.login-right {
    width: 480px;
    min-width: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px;
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,0.02);
    border-left: 1px solid rgba(255,255,255,0.06);
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 44px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.12), 0 0 1px rgba(0,0,0,0.08);
    border: 1px solid var(--monday-border);
}

.login-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--monday-text);
}

.login-card .subtitle {
    color: var(--monday-text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
    line-height: 1.5;
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--monday-text);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--monday-border);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--monday-bg-alt);
    color: var(--monday-text);
}

.form-input:hover {
    border-color: var(--monday-text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--monday-primary);
    box-shadow: 0 0 0 3px rgba(107,91,255,0.12);
    background: var(--monday-bg);
}

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

.login-btn {
    width: 100%;
    padding: 14px 20px;
    background: var(--monday-primary);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 12px;
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    background: var(--monday-primary-hover);
    box-shadow: 0 4px 14px rgba(107,91,255,0.35);
}

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

.login-btn.loading { pointer-events: none; opacity: 0.85; }
.login-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.login-error {
    background: #FFF0F0;
    border: 1px solid #FFCDD2;
    color: var(--accent-red);
    padding: 12px 16px;
    border-radius: var(--monday-radius);
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
    align-items: center;
    gap: 8px;
}

.login-error.show { display: flex; }

.login-divider {
    text-align: center;
    margin: 28px 0;
    position: relative;
    color: var(--monday-text-muted);
    font-size: 12px;
}

.login-divider::before,
.login-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 42%;
    height: 1px;
    background: var(--monday-border);
}

.login-divider::before { left: 0; }
.login-divider::after { right: 0; }

.login-info {
    background: var(--monday-primary-light);
    border-radius: var(--monday-radius);
    padding: 16px;
    font-size: 12px;
    color: var(--monday-text-secondary);
    line-height: 1.6;
}

.login-info code {
    background: #E0E0FF;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 11px;
    color: var(--monday-primary);
}

.eee-login-version,
.kku-login-version {
    margin-top: 20px;
    text-align: center;
    font-size: 12px;
    color: var(--monday-text-muted);
}

.eee-login-version strong,
.kku-login-version strong {
    color: var(--monday-text-secondary);
    font-weight: 600;
}

/* ==================== LOGIN MODAL (Monday.com style) ==================== */
.login-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 15, 20, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.login-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.login-modal {
    background: var(--monday-bg);
    border-radius: var(--monday-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--monday-shadow-lg);
    position: relative;
    transform: scale(0.95);
    transition: transform 0.25s ease;
}

.login-modal-overlay.active .login-modal {
    transform: scale(1);
}

.login-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--monday-bg-alt);
    border-radius: var(--monday-radius);
    color: var(--monday-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.login-modal-close:hover {
    background: var(--monday-border);
    color: var(--monday-text);
}

.login-modal h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--monday-text);
}

.login-modal-subtitle {
    color: var(--monday-text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.login-demo-hint {
    margin-top: 20px;
    font-size: 12px;
    color: var(--monday-text-muted);
}

.login-demo-hint code {
    background: var(--monday-primary-light);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
}

/* ==================== LANDING PAGE = Monday.com style ==================== */
.landing-page {
    display: none;
    min-height: 100vh;
    background: var(--monday-bg);
}

.landing-page.active { display: block; }
.login-page.hidden { display: none; }

/* Header */
.monday-header {
    background: var(--monday-bg);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--monday-border);
}

.monday-nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.monday-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--monday-text);
    font-weight: 700;
    font-size: 18px;
}

.monday-logo-icon {
    width: 32px;
    height: 32px;
    background: var(--monday-primary);
    color: white;
    border-radius: var(--monday-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
}

.monday-nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.monday-nav-link {
    text-decoration: none;
    color: var(--monday-text);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}

.monday-nav-link:hover { color: var(--monday-primary); }

.monday-btn {
    padding: 10px 20px;
    border-radius: var(--monday-radius);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
}

.monday-btn-primary {
    background: var(--monday-primary);
    color: white;
}

.monday-btn-primary:hover {
    background: var(--monday-primary-hover);
    transform: translateY(-1px);
}

.monday-btn-ghost {
    background: transparent;
    color: var(--monday-text-secondary);
    border: 1px solid var(--monday-border);
}

.monday-btn-ghost:hover {
    background: var(--monday-bg-alt);
    color: var(--monday-text);
}

.monday-btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* Hero */
.monday-hero {
    background: linear-gradient(180deg, #0F0F14 0%, #1A1A24 50%, #252532 100%);
    color: white;
    padding: 80px 24px 100px;
    text-align: center;
}

.monday-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.monday-hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.monday-hero-cta {
    margin-bottom: 16px;
}

.monday-hero-note {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 48px;
}

.monday-hero-explore {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
}

.monday-hero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.monday-pill {
    padding: 10px 20px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 24px;
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.monday-pill:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.25);
}

/* Trust */
.monday-trust {
    padding: 40px 24px;
    text-align: center;
    background: var(--monday-bg);
    border-bottom: 1px solid var(--monday-border);
}

.monday-trust-text {
    font-size: 14px;
    color: var(--monday-text-muted);
    font-weight: 500;
}

/* Features */
.monday-features {
    padding: 80px 24px 100px;
    text-align: center;
}

.monday-section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--monday-text);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.monday-section-subtitle {
    font-size: 1.125rem;
    color: var(--monday-text-secondary);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto 48px;
}

.monday-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.monday-card {
    background: var(--monday-bg);
    border: 1px solid var(--monday-border);
    border-radius: var(--monday-radius-lg);
    padding: 32px;
    text-align: left;
    transition: var(--transition);
    box-shadow: var(--monday-shadow);
}

.monday-card:hover {
    border-color: var(--monday-primary);
    box-shadow: var(--monday-shadow-lg);
    transform: translateY(-4px);
}

.monday-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--monday-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 20px;
}

.monday-card-icon-1 { background: #F0EEFF; color: var(--monday-primary); }
.monday-card-icon-2 { background: #E6FFF2; color: #00CA72; }
.monday-card-icon-3 { background: #FFF8EC; color: #FDAB3D; }
.monday-card-icon-4 { background: #FFF0F0; color: #E2445C; }

.monday-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--monday-text);
    margin-bottom: 12px;
}

.monday-card p {
    font-size: 14px;
    color: var(--monday-text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.monday-card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--monday-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.monday-card-link:hover { color: var(--monday-primary-hover); }

/* Stats */
.monday-stats {
    padding: 60px 24px;
    background: var(--monday-bg-alt);
}

.monday-stats-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.monday-stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.monday-stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--monday-primary);
}

.monday-stat-label {
    font-size: 14px;
    color: var(--monday-text-secondary);
}

/* CTA */
.monday-cta {
    padding: 80px 24px;
    text-align: center;
}

.monday-cta-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 800;
    color: var(--monday-text);
    margin-bottom: 16px;
}

.monday-cta-subtitle {
    font-size: 1.125rem;
    color: var(--monday-text-secondary);
    margin-bottom: 32px;
}

/* Footer */
.monday-footer {
    padding: 40px 24px 24px;
    background: var(--monday-dark);
    color: white;
    text-align: center;
}

.monday-footer-inner {
    max-width: 1200px;
    margin: 0 auto 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.monday-footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
}

.monday-footer-brand .monday-logo-icon {
    width: 28px;
    height: 28px;
    font-size: 14px;
}

.monday-footer-links {
    display: flex;
    gap: 24px;
}

.monday-footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.monday-footer-links a:hover { color: white; }

.monday-footer-copy {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

/* KKU logo */
.kku-logo-mark {
    object-fit: contain;
    display: block;
    border-radius: 8px;
}

.kku-logo-mark--sm {
    width: 28px;
    height: 28px;
}

.kku-login-logo {
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(107, 91, 255, 0.4);
}

/* Toast */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--monday-radius);
    box-shadow: var(--monday-shadow-lg);
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideIn 0.3s ease;
    min-width: 300px;
}

.toast.success { background: var(--accent-green); color: white; }
.toast.error { background: var(--accent-red); color: white; }
.toast.info { background: var(--monday-primary); color: white; }

@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 768px) {
    .login-page { flex-direction: column; }
    .login-left { padding: 40px 24px; }
    .login-left h1 { font-size: 32px; }
    .login-right { width: 100%; min-width: unset; padding: 24px; border-left: none; border-top: 1px solid rgba(255,255,255,0.06); }
    .monday-hero { padding: 60px 20px 80px; }
    .monday-hero-pills { flex-direction: column; }
    .monday-footer-inner { flex-direction: column; }
}