/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation Styles */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 123, 255, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    height: 40px;
    width: auto;
}

.company-name {
    font-weight: 600;
    color: #007bff;
    font-size: 1.1rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.nav-link:hover,
.nav-link.active {
    color: #007bff;
}

.btn-register {
    background: #007bff;
    color: white !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-register:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow: hidden;
    padding-top: 200px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    background-image: url('/images/KNpremise.jpg');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 123, 255, 0.8);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding: 4rem 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-top: 5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: white;
    color: #007bff;
    border-color: white;
}

.btn-primary:hover {
    background: transparent;
    color: white;
    border-color: white;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #007bff;
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    padding: 4rem 0;
    margin-top: 80px;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 123, 255, 0.15);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.card-description {
    color: #666;
    margin-bottom: 1.5rem;
}

.card-link {
    color: #007bff;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.card-link:hover {
    color: #0056b3;
}

/* News Section */
.news-section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 2rem;
    text-align: center;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.news-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 123, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.12);
}

.news-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.news-content h4 {
    font-weight: 600;
    color: #333;
    margin-bottom: 0.25rem;
}

.news-meta {
    color: #666;
    font-size: 0.9rem;
}

/* Calendar Section */
.calendar-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.1);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.calendar-date {
    text-align: center;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 1rem;
    border-radius: 10px;
    min-width: 120px;
}

.date-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
}

.date-month {
    font-size: 0.9rem;
    opacity: 0.9;
}

.events-list h3 {
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

.event-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid #eee;
}

.event-item:last-child {
    border-bottom: none;
}

.event-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.event-badge.new {
    background: #28a745;
    color: white;
}

.event-badge.today {
    background: #ffc107;
    color: #333;
}

.event-title {
    color: #333;
    font-weight: 500;
}

/* Footer Styles */
.footer {
    background: #333;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-logo:hover {
    opacity: 1;
}

.footer-text {
    font-size: 0.9rem;
    color: #ccc;
}

@media (max-width: 768px) {
    .footer-logos {
        gap: 1.5rem;
    }
    
    .footer-logo {
        height: 45px;
    }
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
    max-width: 500px;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 10000;
    border-left: 4px solid var(--primary-color);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.toast-success {
    border-left-color: var(--success-color);
}

.toast.toast-error {
    border-left-color: var(--danger-color);
}

.toast.toast-warning {
    border-left-color: var(--warning-color);
}

.toast.toast-info {
    border-left-color: var(--info-color);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.toast-content i {
    font-size: 1.25rem;
}

.toast-success .toast-content i {
    color: var(--success-color);
}

.toast-error .toast-content i {
    color: var(--danger-color);
}

.toast-warning .toast-content i {
    color: var(--warning-color);
}

.toast-info .toast-content i {
    color: var(--info-color);
}

.toast-content span {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.toast-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Toast container for multiple toasts */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Notification System Styles */
.notification-bell {
    position: relative;
    cursor: pointer;
}

.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--danger-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    width: 350px;
    max-height: 400px;
    overflow: hidden;
    z-index: 1000;
    display: none;
}

.notification-dropdown.show {
    display: block;
}

.notification-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notification-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.mark-all-read {
    font-size: 0.75rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.mark-all-read:hover {
    text-decoration: underline;
}

.notification-list {
    max-height: 300px;
    overflow-y: auto;
}

.notification-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.notification-item:hover {
    background: var(--bg-secondary);
}

.notification-item:last-child {
    border-bottom: none;
}

.notification-item.unread {
    background: rgba(52, 152, 219, 0.05);
}

.notification-item.unread::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
}

.notification-content {
    display: flex;
    gap: 0.75rem;
}

.notification-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: white;
    flex-shrink: 0;
}

.notification-icon.success {
    background: var(--success-color);
}

.notification-icon.warning {
    background: var(--warning-color);
}

.notification-icon.info {
    background: var(--info-color);
}

.notification-icon.error {
    background: var(--danger-color);
}

.notification-details {
    flex: 1;
}

.notification-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.notification-message {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0 0 0.5rem 0;
    line-height: 1.4;
}

.notification-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.notification-footer {
    padding: 1rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.view-all-notifications {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.view-all-notifications:hover {
    text-decoration: underline;
}

/* Empty state */
.notification-empty {
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--text-secondary);
}

.notification-empty i {
    font-size: 2rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Responsive Design */
@media (max-width: 768px) {
    .toast {
        right: 10px;
        left: 10px;
        min-width: auto;
        max-width: none;
    }
    
    .notification-dropdown {
        width: 300px;
        right: -50px;
    }
    
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .calendar-header {
        flex-direction: column;
        text-align: center;
    }

    .footer-logos {
        flex-direction: column;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .notification-dropdown {
        width: 280px;
        right: -100px;
    }
    
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .card,
    .calendar-section {
        padding: 1.5rem;
    }

    .company-name {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .card,
    .calendar-section {
        padding: 1.5rem;
    }

    .company-name {
        display: none;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Search Container Styles */
.search-container {
    margin: 3rem 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-form {
    width: 100%;
}

.search-input-wrapper {
    position: relative;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 1rem 3rem 1rem 1.5rem;
    font-size: 1.1rem;
    color: #333;
    background: white;
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.search-button {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0.5rem;
    color: #666;
    cursor: pointer;
    transition: color 0.2s ease;
}

.search-button:hover {
    color: #007bff;
}

/* Icon Grid Styles */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .icon-grid {
        grid-template-columns: repeat(8, 1fr);
        gap: 1rem;
    }
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.icon-item:hover {
    transform: translateY(-5px);
}

.icon-box {
    width: 64px;
    height: 64px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.icon-item:hover .icon-box {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.05);
}

.icon-box i {
    font-size: 1.5rem;
    color: white;
}

.icon-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
}

/* Hero Section Updates */
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding: 4rem 1rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-top: 5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.1;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.5rem;
    }
}
/* Dropdown Menu */
.nav-menu .nav-item.dropdown { position: relative; }
.nav-menu .dropdown-toggle { display: inline-flex; align-items: center; gap: 6px; }
.nav-menu .dropdown-toggle .caret { font-size: 0.8rem; transition: transform 0.2s ease; }
.nav-menu .nav-item.dropdown.open .dropdown-toggle .caret { transform: rotate(180deg); }

.dropdown-menu {
    position: absolute;
    top: 100%; /* remove gap to prevent hover flicker */
    left: 0;
    min-width: 220px;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 8px 24px rgba(0,123,255,0.12);
    border-radius: 8px;
    padding: 8px 0; /* keep visual spacing inside menu */
    display: none;
    z-index: 1100;
}

.nav-item.dropdown.open .dropdown-menu { display: block; }

.dropdown-menu .dropdown-link {
    display: block;
    padding: 10px 14px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease;
}

.dropdown-menu .dropdown-link:hover {
    background: rgba(0,123,255,0.08);
    color: #007bff;
}

.dropdown-menu .divider {
    height: 1px;
    background: rgba(0,0,0,0.06);
    margin: 6px 0;
}

/* Hover-to-open for desktop nav dropdown */
.nav-item.dropdown:hover .dropdown-menu {
  display: block;
}
.nav-item.dropdown:hover .dropdown-toggle .caret {
  transform: rotate(180deg);
}

.dropdown-menu .dropdown-link {
    display: block;
    padding: 10px 14px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease;
}

.dropdown-menu .dropdown-link:hover {
    background: rgba(0,123,255,0.08);
    color: #007bff;
}

.dropdown-menu .divider {
    height: 1px;
    background: rgba(0,0,0,0.06);
    margin: 6px 0;
}

/* Responsive dropdown for mobile nav */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        padding: 0;
        margin: 8px 0 0;
    }

    .dropdown-menu .dropdown-link {
        padding: 10px 12px;
    }
}