/* 
  Interlinnea Brand Styles 
  Typography: Inter
  Colors: Azure Blue (#0D6EFD), Obsidian Black Dark (#001233), Obsidian Black Gray (#212529), Pure White (#FFFFFF)
*/

:root {
    --azure-blue: #0D6EFD;
    --obsidian-dark: #001233;
    --obsidian-gray: #212529;
    --pure-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --text-muted: #6C757D;
    --font-primary: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--obsidian-dark);
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--azure-blue);
    transition: color var(--transition-speed);
}

a:hover {
    color: #0b5ed7; /* Darker blue */
}

ul {
    list-style: none;
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

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

.bg-dark {
    background-color: var(--obsidian-dark);
    color: var(--pure-white);
}

.bg-dark h2, .bg-dark h3, .bg-dark p {
    color: var(--pure-white);
}

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

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
}

.btn:hover {
    transform: scale(1.05);
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    color: var(--pure-white);
}

.btn-secondary {
    background-color: transparent;
    color: var(--pure-white);
    border-color: var(--pure-white);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--pure-white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    background-color: var(--pure-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    padding-top: 1rem;
    padding-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--obsidian-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-logo {
    height: 40px; /* Adjust height based on preference */
    width: auto;
}

.logo-symbol {
    color: var(--azure-blue);
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    color: var(--obsidian-gray);
    font-weight: 600;
}

.nav-menu a:hover {
    color: var(--azure-blue);
}

.nav-menu .btn-primary {
    color: var(--pure-white);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--obsidian-dark);
    cursor: pointer;
}

/* Social Ribbon */
.social-ribbon {
    background-color: #b91716;
    padding: 0.25rem 0;
}

.social-ribbon .container {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-ribbon a {
    color: var(--pure-white);
    font-size: 1.25rem;
    transition: transform var(--transition-speed) ease;
    display: inline-block;
}

.social-ribbon a:hover {
    transform: scale(1.2);
}

/* Sections Common */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    margin-top: 70px; /* Offset for fixed navbar */
    background-color: var(--obsidian-dark);
    color: var(--pure-white);
    padding: 6rem 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

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

.hero .highlight {
    color: var(--azure-blue);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #e0e0e0;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-image-placeholder {
    width: 100%;
    height: 400px;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
}

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

/* Values Section */
.card {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform var(--transition-speed);
}

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

.value-icon {
    font-size: 2.5rem;
    color: var(--azure-blue);
    margin-bottom: 1.5rem;
}

/* Services Section */
.services-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.services-image-container {
    width: 100%;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.services-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
}

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

.service-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.service-icon {
    font-size: 2rem;
    color: var(--azure-blue);
    background-color: rgba(13,110,253,0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.service-icon i {
    transition: transform 0.6s ease-in-out;
}

.service-item:hover .service-icon i {
    transform: rotate(360deg);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.stat-box {
    background-color: rgba(255,255,255,0.05);
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--azure-blue);
    margin-bottom: 0.5rem;
}

/* CTA */
.cta {
    background: linear-gradient(135deg, var(--azure-blue) 0%, #084298 100%);
    color: var(--pure-white);
}

.cta h2 {
    color: var(--pure-white);
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

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

.cta .btn-primary:hover {
    background-color: var(--bg-light);
}

/* Footer */
footer {
    background-color: #000a1f; /* Even darker than obsidian for footer */
    color: var(--pure-white);
    padding: 4rem 0 2rem;
}

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

.footer-brand h3 {
    color: var(--pure-white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: #a0aabf;
}

.footer-links a:hover {
    color: var(--azure-blue);
}

.footer-contact p {
    color: #a0aabf;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #a0aabf;
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: none;
    border: none;
    color: var(--obsidian-gray);
    font-size: 1.25rem;
    cursor: pointer;
    transition: color var(--transition-speed);
    display: flex;
    align-items: center;
    padding: 0.5rem;
}

.theme-toggle-btn:hover {
    color: var(--azure-blue);
}

/* Dark Theme Overrides */
[data-theme="dark"] body {
    background-color: #000a1f;
    color: #e0e0e0;
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, [data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6 {
    color: #ffffff;
}

[data-theme="dark"] .bg-light {
    background-color: #001233;
}

[data-theme="dark"] .card {
    background-color: rgba(255, 255, 255, 0.05);
    color: #e0e0e0;
}

[data-theme="dark"] .navbar {
    background-color: #001233;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

[data-theme="dark"] .nav-menu a {
    color: #e0e0e0;
}

[data-theme="dark"] .logo {
    color: #ffffff;
}

[data-theme="dark"] .mobile-toggle {
    color: #ffffff;
}

[data-theme="dark"] .theme-toggle-btn {
    color: #e0e0e0;
}

[data-theme="dark"] .nav-menu {
    background-color: #001233;
}

/* Responsive */
@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-actions {
        justify-content: center;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .services-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--pure-white);
        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
        padding: 1rem 0;
    }
    .nav-menu.active {
        display: block;
    }
    .nav-menu ul {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    .mobile-toggle {
        display: block;
    }
    .footer-content {
        grid-template-columns: 1fr;
    }
}