/* ============================================
   KANAVUGAL ACADEMY - DESIGN SYSTEM
   Theme: Blue & White Professional
   ============================================ */

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
    /* Primary Colors - Blue Theme */
    --primary-blue: #0066cc;
    --primary-blue-dark: #004c99;
    --primary-blue-light: #3385d6;
    --accent-blue: #0080ff;
    --sky-blue: #e6f2ff;

    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e9ecef;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #000000;

    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #0066cc 0%, #0080ff 100%);
    --gradient-light: linear-gradient(135deg, #e6f2ff 0%, #ffffff 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 102, 204, 0.9) 0%, rgba(0, 128, 255, 0.9) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 102, 204, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 102, 204, 0.15);
    --shadow-xl: 0 16px 48px rgba(0, 102, 204, 0.2);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1050;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--primary-blue-dark);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--primary-blue);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    line-height: 1.8;
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--accent-blue);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-alt {
    background: var(--gradient-light);
}

.text-center {
    text-align: center;
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
    transition: var(--transition-base);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue-dark);
}

.logo-img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--dark-gray);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-light);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 128, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-tagline {
    font-size: 1.3rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title {
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ============================================
   VISION & MISSION
   ============================================ */
.vision-mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.vision-card,
.mission-card {
    position: relative;
    padding: var(--spacing-xl);
}

.vision-card h3,
.mission-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.icon {
    font-size: 2rem;
}

/* ============================================
   COURSES SECTION
   ============================================ */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.course-card {
    text-align: center;
    padding: 1.5rem;
    width: 100%;
}

.course-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    transition: var(--transition-base);
}

.course-card:hover .course-icon {
    transform: scale(1.1) rotate(5deg);
}

.course-card h3 {
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   STAFF SECTION
   ============================================ */
.staff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.staff-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.staff-card h4 {
    color: var(--primary-blue-dark);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.staff-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.director-card {
    grid-column: 1 / -1;
    max-width: 600px;
    margin: 0 auto;
    background: var(--gradient-light);
    border: 2px solid var(--primary-blue);
}

/* ============================================
   GALLERY SECTION
   ============================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    aspect-ratio: 16/9;
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gradient-overlay);
    color: var(--white);
    padding: var(--spacing-md);
    transform: translateY(100%);
    transition: var(--transition-base);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* ============================================
   LOCATIONS SECTION
   ============================================ */
.locations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.location-card {
    padding: var(--spacing-xl);
}

.location-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-blue);
}

.location-header i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.location-header h3 {
    margin-bottom: 0;
}

.map-container {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.map-container:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.location-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.location-info p {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.location-info i {
    color: var(--primary-blue);
    font-size: 1.1rem;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-form-card {
    padding: var(--spacing-xl);
    background: var(--white);
    border: 1px solid var(--light-gray);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-base);
    background-color: var(--off-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--sky-blue);
    background-color: var(--white);
}

.form-group textarea {
    resize: vertical;
}

/* ============================================
   SOCIAL & CONTACT
   ============================================ */
.social-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.social-link {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    color: var(--primary-blue);
}

.social-link:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-primary);
    color: var(--white);
}

/* ============================================
   CONTACT NUMBERS & WHATSAPP
   ============================================ */
.contact-info h3,
.whatsapp-section h3 {
    color: var(--primary-blue-dark);
    font-size: 1.8rem;
}

.contact-numbers {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.contact-number {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--primary-blue);
    border-radius: var(--radius-md);
    color: var(--primary-blue);
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    text-decoration: none;
}

.contact-number:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-number i {
    font-size: 1.3rem;
}

.whatsapp-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 1.15rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.whatsapp-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.whatsapp-btn:hover::before {
    left: 100%;
}

.whatsapp-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-xl);
    color: var(--white);
}

.whatsapp-btn i {
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    text-align: center;
}

.footer p {
    color: var(--light-gray);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-30px) rotate(5deg);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-xl);
        transition: var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 70vh;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .vision-mission-grid {
        grid-template-columns: 1fr;
    }

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

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

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

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

    .contact-numbers,
    .whatsapp-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .contact-number,
    .whatsapp-btn {
        width: 100%;
        justify-content: center;
    }

    .section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }
}

/* ============================================
   FLOATING WHATSAPP BUTTON UI
   ============================================ */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 35px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
    animation: float-pulse 2s infinite;
}

.floating-whatsapp:hover {
    background: #128C7E;
    transform: scale(1.1);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.4);
    color: white;
}

@keyframes float-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
        transform: scale(1);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
        transform: scale(1);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .floating-whatsapp {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 28px;
    }
}

/* ============================================
   DIRECTOR'S DESK SECTION
   ============================================ */
.directors-message p {
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.director-sign-off {
    margin-top: 2rem;
    text-align: right;
}

.director-sign-off h4 {
    color: var(--primary-blue-dark);
    margin-bottom: 0.2rem;
}

@media (max-width: 768px) {
    .directors-message p {
        text-align: left;
    }

    .director-sign-off {
        text-align: left;
    }
}

.directors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.director-profile-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: -75px auto 2rem;
    /* Pull image up */
    border: 5px solid var(--white);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    background: var(--white);
    position: relative;
    z-index: 1;
}

.director-profile-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

#directors-desk .card {
    margin-top: 60px;
    /* Space for the pulled-up image */
    padding-top: 0;
    /* Adjust padding if needed */
    overflow: visible;
    /* Allow image to pull out of the card */
}

@media (max-width: 768px) {
    .directors-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   SPLIT LAYOUT (IMAGE + CONTENT)
   ============================================ */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-top: var(--spacing-lg);
}

.split-image-container {
    height: 100%;
    min-height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    /* transition: var(--transition-base); */
}

.split-image-container:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.split-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.split-image-container:hover .split-image {
    transform: scale(1.05);
}

.split-content.card {
    /* If removing margin auto from original inline styles */
    margin: 0;
}

@media (max-width: 900px) {
    .split-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .split-image-container {
        min-height: 250px;
        /* Decide order: Image top or bottom? Default is bottom if HTML order is Content -> Image. 
           If use 'order: -1' on container, it goes to top. */
        order: -1;
    }
}