/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700&display=swap');

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

:root {
    --primary-blue: #1F3A5F;
    --secondary-blue: #4A6FA5;
    --accent-grey: #D1D5DB;
    --background-light: #F8FAFC;
    --text-dark: #1E293B;
    --white: #FFFFFF;

    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 1rem;
    /* 16px */
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--primary-blue);
    line-height: 1.25;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utilities */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: var(--font-body);
}

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

.btn-primary:hover {
    background-color: #162a45;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.section-padding {
    padding: 4rem 0;
}

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

.grid {
    display: grid;
    gap: 2rem;
}

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-blue);
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-dark);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--secondary-blue);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(31, 58, 95, 0.9), rgba(31, 58, 95, 0.7)), url('assets/hero_home.png');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 8rem 0;
    text-align: center;
    border-radius: 0 0 0 0;
    /* Full bleed, no radius usually for hero background */
}

/* On mobile, maybe we want an image card instead of full background text overlay? 
   User asked for "Hero section: Headline... Sub-text... Primary CTA". 
   A standard high-end look is text overlay. */

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

/* Services Overview */
.services-section {
    background-color: var(--background-light);
}

.section-title {
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.section-title p {
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.service-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-grey);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 1rem;
    background-color: #ecf3fc;
    border-radius: 50%;
    color: var(--primary-blue);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.service-card p {
    color: #64748b;
    margin-bottom: 1.5rem;
}

.service-link {
    font-weight: 600;
    color: var(--secondary-blue);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.service-link::after {
    content: '→';
    transition: transform 0.2s;
}

.service-link:hover::after {
    transform: translateX(4px);
}

/* Why Choose Us */
.features-section {
    background-color: var(--white);
}

.feature-grid {
    grid-template-columns: repeat(3, 1fr);
}

.feature-item {
    text-align: left;
    padding: 1.5rem;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1rem;
}

.feature-item h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    height: 1.25em;
    width: 3px;
    background-color: var(--secondary-blue);
    border-radius: 4px;
}

/* About Page Specifics */
.about-hero {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 4rem 0;
}

.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.mv-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 5px solid var(--secondary-blue);
}

/* Contact Page Specifics */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-info {
    padding-right: 2rem;
    border-right: 1px solid var(--accent-grey);
}

.info-item {
    margin-bottom: 2rem;
}

.info-item h4 {
    margin-bottom: 0.5rem;
    color: var(--secondary-blue);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--accent-grey);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    transition: border-color 0.2s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    opacity: 0.8;
    max-width: 300px;
    font-size: 0.9rem;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-info {
        border-right: none;
        border-bottom: 1px solid var(--accent-grey);
        padding-right: 0;
        padding-bottom: 2rem;
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        gap: 0;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid #f1f5f9;
        width: 100%;
    }

    .mobile-menu-btn {
        display: block;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .section-padding {
        padding: 3rem 0;
    }

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