/* 
  Colors Palette:
  Primary Blue: #0B3C5D (Dark Blue)
  Secondary Blue: #328CC1 (Light Blue)
  Gold: #D9B310 (Accent)
  White: #FFFFFF
  Off-White/Light Gray: #F8F9FA
  Dark Gray: #333333
*/

:root {
    --primary-blue: #0B3C5D;
    --secondary-blue: #328CC1;
    --gold: #D9B310;
    --gold-hover: #C5A10C;
    --white: #FFFFFF;
    --light-bg: #F8F9FA;
    --text-dark: #333333;
    --text-light: #777777;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--light-bg);
}

/* Typography & Titles */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.divider {
    height: 3px;
    width: 60px;
    background-color: var(--gold);
    margin: 0 auto;
}

.divider-left {
    height: 3px;
    width: 60px;
    background-color: var(--gold);
    margin: 10px 0 20px 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--gold);
    color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: var(--gold-hover);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(217, 179, 16, 0.4);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: var(--transition);
    padding: 20px 0;
}

header.scrolled {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
}

header.scrolled .logo a,
header.scrolled .nav-links li a,
header.scrolled .menu-toggle {
    color: var(--primary-blue);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
    color: var(--white);
}

.logo span {
    color: var(--gold);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links li a {
    color: var(--white);
    font-weight: 600;
    position: relative;
    padding-bottom: 5px;
}

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

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

.menu-toggle {
    display: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    background: url('https://images.unsplash.com/photo-1436491865332-7a61a109cc05?q=80&w=2074&auto=format&fit=crop') center/cover no-repeat fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 60, 93, 0.6);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-weight: 300;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 15px;
    color: var(--text-light);
}

.about-list {
    margin-top: 20px;
}

.about-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-list li i {
    color: var(--gold);
}

.image-placeholder {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    height: 400px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.image-placeholder i {
    font-size: 5rem;
    color: rgba(255,255,255,0.3);
}

.image-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    color: var(--white);
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    z-index: 2;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    border-bottom: 3px solid var(--gold);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.icon-wrapper {
    width: 70px;
    height: 70px;
    background-color: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-blue);
    font-size: 2rem;
    transition: var(--transition);
}

.service-card:hover .icon-wrapper {
    background-color: var(--primary-blue);
    color: var(--white);
}

.service-card h3 {
    margin-bottom: 15px;
    color: var(--primary-blue);
    font-size: 1.2rem;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Differentials */
.diff-flex {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    text-align: center;
}

.diff-item {
    flex: 1;
}

.diff-icon {
    font-size: 3rem;
    color: var(--gold);
    margin-bottom: 20px;
}

.diff-item h4 {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.diff-item p {
    color: var(--text-light);
}

/* Institutional & Location */
.info-loc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.inst-info h3, .location h3 {
    color: var(--primary-blue);
    font-size: 1.8rem;
}

.info-list li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    color: var(--text-dark);
}

.info-list li:last-child {
    border-bottom: none;
}

.location p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.location i {
    color: var(--gold);
    margin-right: 10px;
}

.map-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Contact */
.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 5px rgba(11, 60, 93, 0.2);
}

.contact-form .btn {
    width: 100%;
}

/* Footer */
footer {
    background-color: var(--primary-blue);
    color: var(--white);
}

.footer-top {
    padding: 60px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}

.footer-about h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.footer-about span {
    color: var(--gold);
}

.footer-about p {
    color: #bbb;
    margin-bottom: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    margin-right: 10px;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--gold);
    color: var(--primary-blue);
    transform: translateY(-3px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--gold);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #bbb;
}

.footer-links ul li a:hover {
    color: var(--gold);
    padding-left: 5px;
}

.footer-contact p {
    color: #bbb;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--gold);
}

.footer-bottom {
    background-color: #082a42;
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
    color: #888;
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    background-color: #1ebe57;
    box-shadow: 0 6px 15px rgba(0,0,0,0.4);
}

/* Animations (Classes for JS to trigger) */
.hidden {
    opacity: 0;
}

.fade-in {
    animation: fadeIn 1s ease forwards;
}

.slide-in-left {
    animation: slideInLeft 1s ease forwards;
}

.slide-in-right {
    animation: slideInRight 1s ease forwards;
}

.zoom-in {
    animation: zoomIn 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

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

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

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

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}


/* Responsive Design */
@media (max-width: 992px) {
    .about-content,
    .info-loc-grid {
        grid-template-columns: 1fr;
    }
    
    .diff-flex {
        flex-direction: column;
    }

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

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        gap: 0;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
    }

    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .nav-links li {
        text-align: center;
        border-bottom: 1px solid #eee;
    }

    .nav-links li a {
        display: block;
        padding: 15px;
        color: var(--primary-blue);
    }
    
    header:not(.scrolled) .logo a {
        color: var(--primary-blue);
    }
    
    header:not(.scrolled) .menu-toggle {
        color: var(--primary-blue);
    }

    header:not(.scrolled) {
        background-color: var(--white);
        padding: 15px 0;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

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