/* Color Variables based on ISSR Logo */
:root {
    --primary-blue: #003366; /* Deep Navy */
    --secondary-blue: #005582; /* Lighter Blue from logo */
    --accent-grey: #8a9ba8;
    --text-dark: #333333;
    --text-light: #f4f4f4;
    --bg-light: #f9f9f9;
    --white: #ffffff;
}

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

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

/* Typography & Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.center-text { text-align: center; }
.mt-3 { margin-top: 30px; }
.text-primary { color: var(--primary-blue); }
.text-light { color: var(--accent-grey); }
.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--primary-blue); }
.text-white { color: var(--white); }

.section-subtitle {
    color: var(--secondary-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}
.bg-dark .section-title { color: var(--white); }

/* Buttons */
.btn {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: 0.3s;
}
.btn:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}
.btn-outline {
    border: 2px solid var(--primary-blue);
    padding: 8px 20px;
    border-radius: 5px;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}
.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* Header & Nav */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    transition: 0.3s;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

/* --- LOGO STYLING --- */
.logo img {
    max-height: 55px; /* Restricts the logo height so it fits in the header */
    width: auto;      /* Maintains aspect ratio */
    display: block;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: 0.3s;
}
.nav-links a:hover:not(.btn-outline) {
    color: var(--secondary-blue);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    position: relative;
    display: flex;
    align-items: center;
}
.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 51, 102, 0.7); /* Deep blue overlay */
}
.hero-content {
    position: relative;
    color: var(--white);
    max-width: 800px;
    z-index: 1;
}
.hero-content h1 {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* Grids */
.flex-row { display: flex; gap: 50px; align-items: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* About */
.about-text, .about-image { flex: 1; }
.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}
.experience-badge {
    margin-top: 30px;
    background: var(--bg-light);
    border-left: 5px solid var(--secondary-blue);
    padding: 15px;
}
.experience-badge h3 { font-size: 2rem; color: var(--primary-blue); }

/* Cards (Mission, Vision, Services) */
.card, .service-box, .feature {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: 0.3s;
}
.card:hover, .service-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.card-icon {
    font-size: 3rem;
    color: var(--secondary-blue);
    margin-bottom: 20px;
}
.service-box i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}
.bg-dark .feature {
    background: rgba(255,255,255,0.1);
    box-shadow: none;
}
.feature i {
    font-size: 2.5rem;
    color: var(--accent-grey);
    margin-bottom: 15px;
}

/* Statistics */
.stats-bg {
    background: url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover fixed;
    position: relative;
    color: var(--white);
    text-align: center;
}
.stats-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.8);
}
.position-relative { position: relative; z-index: 1; }
.stat-item h2 {
    font-size: 3.5rem;
    color: var(--secondary-blue);
    margin-bottom: 10px;
}
.stat-item p { font-size: 1.1rem; text-transform: uppercase; letter-spacing: 1px; }

/* Footer */
footer {
    background: #0f171e;
    color: var(--text-light);
    padding: 60px 0 20px;
}
footer h3 {
    color: var(--white);
    margin-bottom: 20px;
}
.contact-list { list-style: none; }
.contact-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.contact-list i { color: var(--secondary-blue); margin-top: 5px; }
.footer-bottom {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
}

/* Responsive */
@media(max-width: 900px) {
    .flex-row, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; flex-direction: column; }
    .nav-links { display: none; } /* Add hamburger menu logic for mobile if needed */
    .hero-content h1 { font-size: 2.5rem; }
}
/* SEO Content Section */

#seo-content {
    padding: 80px 0;
}

.seo-card {
    max-width: 950px;
    margin: 0 auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.seo-card:hover {
    transform: translateY(-5px);
}

.seo-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.seo-header i {
    font-size: 2rem;
    color: #c89b3c;
}

.seo-header h2 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    color: #222;
}

.seo-card p {
    font-size: 1rem;
    line-height: 1.9;
    color: #555;
    margin-bottom: 18px;
}

/* Mobile Responsive */

@media (max-width: 768px) {
    .seo-card {
        padding: 25px;
    }

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

    .seo-header h2 {
        font-size: 1.5rem;
    }
}
.faq-section {
    padding: 80px 20px;
    background: #f8fafc;
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-header {
    text-align: center;
    margin-bottom: 50px;
}

.faq-tag {
    display: inline-block;
    padding: 8px 16px;
    background: #e8f1ff;
    color: #0f4c81;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
}

.faq-header h2 {
    font-size: 2.5rem;
    color: #1f2937;
    margin-bottom: 15px;
}

.faq-header p {
    color: #6b7280;
    max-width: 650px;
    margin: auto;
    line-height: 1.7;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-2px);
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 22px 25px;
    font-size: 1.05rem;
    font-weight: 600;
    color: #111827;
    position: relative;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 25px;
    font-size: 24px;
    transition: 0.3s;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 25px 25px;
    color: #6b7280;
    line-height: 1.8;
}