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

:root {
    /* Colors */
    --c-blue-deep: #0C1A30;
    /* Deep institutional blue */
    --c-blue-light: #1A3052;
    --c-white: #FFFFFF;
    --c-gray-light: #F7F8FA;
    --c-gray-medium: #E2E4E8;
    --c-gray-dark: #4A5568;
    --c-black-soft: #1A202C;

    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;

    /* Transitions */
    --t-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --t-reveal: all 1.2s cubic-bezier(0.22, 1, 0.36, 1);

    /* Spacing */
    --gutter: 2rem;
    --section-pad: 8rem 0;
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--c-black-soft);
    background-color: var(--c-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--c-blue-deep);
}

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

ul {
    list-style: none;
}

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

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--gutter);
}

section {
    padding: var(--section-pad);
}

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

.bg-blue {
    background-color: var(--c-blue-deep);
    color: var(--c-white);
}

.bg-blue h1,
.bg-blue h2,
.bg-blue h3 {
    color: var(--c-white);
}

/* Typography Helpers */
.text-center {
    text-align: center;
}

.text-serif {
    font-family: var(--font-serif);
}

.text-sans {
    font-family: var(--font-sans);
}

.text-lead {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--c-gray-dark);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.section-subtitle {
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    color: var(--c-gray-dark);
    margin-bottom: 1rem;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--t-smooth);
    border-radius: 2px;
}

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

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

.btn-outline {
    border-color: var(--c-blue-deep);
    color: var(--c-blue-deep);
}

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

.btn-white-outline {
    border-color: var(--c-white);
    color: var(--c-white);
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 0;
    z-index: 1000;
    transition: var(--t-smooth);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--c-white);
    letter-spacing: 1px;
}

.navbar.scrolled .logo,
.navbar.light-theme .logo {
    color: var(--c-blue-deep);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c-white);
    opacity: 0.9;
}

.navbar.scrolled .nav-links a,
.navbar.light-theme .nav-links a {
    color: var(--c-blue-deep);
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 24px;
    height: 1px;
    background-color: var(--c-white);
    transition: var(--t-smooth);
}

.navbar.scrolled .menu-toggle span,
.navbar.light-theme .menu-toggle span {
    background-color: var(--c-blue-deep);
}

/* Base Hero */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--c-blue-deep);
    background-image: url('https://images.unsplash.com/photo-1453928582365-b6ad33cbcf64?auto=format&fit=crop&q=80&w=2000');
    background-size: cover;
    background-position: center;
    color: var(--c-white);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradient overlay to ensure maximum legibility - Darkened */
    background: linear-gradient(to bottom, rgba(12, 26, 48, 0.92) 0%, rgba(12, 26, 48, 0.80) 50%, rgba(12, 26, 48, 0.96) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: 0 1.5rem;
}

.hero.light-hero {
    height: 60vh;
    min-height: 400px;
}

.hero.light-hero .hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero.light-hero h1 {
    color: var(--c-white);
    font-size: 3.5rem;
}

.hero h1 {
    font-size: 3.75rem;
    margin-bottom: 1.5rem;
    letter-spacing: normal;
    line-height: 1.15;
    color: var(--c-white);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.hero p {
    font-size: 1.25rem;
    font-weight: 300;
    opacity: 0.95;
    margin: 0 auto 3rem;
    max-width: 700px;
    line-height: 1.6;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

/* Microinteractions - Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--t-reveal);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--c-white);
    padding: 3.5rem 2.5rem;
    border: 1px solid var(--c-gray-medium);
    transition: var(--t-smooth);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.02);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(12, 26, 48, 0.08);
    border-color: rgba(12, 26, 48, 0.15);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.card p {
    color: var(--c-gray-dark);
    font-size: 0.95rem;
}

/* Articles */
.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.article-card {
    border-bottom: 1px solid var(--c-gray-medium);
    padding-bottom: 2rem;
}

.article-meta {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--c-gray-dark);
    letter-spacing: 1px;
    margin-bottom: 1rem;
    display: block;
}

.article-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.article-excerpt {
    color: var(--c-gray-dark);
    margin-bottom: 1.5rem;
}

.read-more {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c-blue-deep);
    font-weight: 500;
    border-bottom: 1px solid transparent;
}

.read-more:hover {
    border-color: var(--c-blue-deep);
}

/* Article Detail */
.article-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.article-content {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--c-black-soft);
}

.article-content p {
    margin-bottom: 2rem;
}

.article-content h2 {
    font-size: 2rem;
    margin: 3rem 0 1.5rem;
}

/* Photo Wrapper */
.photo-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 3/4;
    background-color: var(--c-gray-medium);
    overflow: hidden;
}

.photo-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.photo-wrapper:hover img {
    transform: scale(1.03);
}

/* Footer */
.footer {
    background-color: var(--c-blue-deep);
    color: var(--c-white);
    padding: 6rem 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer h4 {
    color: var(--c-white);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer p,
.footer a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer a:hover {
    color: var(--c-white);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Forms */
.form-group {
    margin-bottom: 2rem;
}

.form-control {
    width: 100%;
    padding: 1rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid calc(var(--c-gray-medium) * 0.8);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--c-black-soft);
    transition: var(--t-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--c-blue-deep);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }

    .hero.light-hero h1 {
        font-size: 2rem;
    }

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

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--c-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--t-smooth);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    }

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

    .nav-links a {
        color: var(--c-blue-deep) !important;
        font-size: 1.2rem;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
        background-color: var(--c-blue-deep);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
        background-color: var(--c-blue-deep);
    }
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.2);
    color: #FFF;
}

.whatsapp-float svg {
    width: 35px;
    height: 35px;
    fill: currentColor;
}

@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
    }

    .whatsapp-float svg {
        width: 30px;
        height: 30px;
    }
}