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

:root {
    /* Nordic-inspired Color Palette */
    --color-primary: #1e3a5f;
    --color-primary-light: #2c5f8d;
    --color-primary-dark: #0f1f35;
    --color-accent: #5fb3b3;
    --color-accent-dark: #3d8f8f;
    --color-background: #ffffff;
    --color-background-alt: #f8fafb;
    --color-text: #2d3748;
    --color-text-light: #4a5568;
    --color-text-muted: #718096;
    --color-border: #e2e8f0;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-background);
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   Navigation
   =========================== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

#navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.logo img {
    display: block;
    transition: var(--transition);
}

.logo:hover img {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.nav-links .cta-button {
    background-color: var(--color-accent);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
}

.nav-links .cta-button:hover {
    background-color: var(--color-accent-dark);
    color: white;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

/* ===========================
   Hero Section
   =========================== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #f8fafb 0%, #e8f4f8 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
}

.hero-title-main {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.1;
    margin-bottom: var(--spacing-xs);
}

.hero-title-sub {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1.1;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-mountains {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-mountains::before,
.hero-mountains::after {
    content: '';
    position: absolute;
    bottom: 0;
    width: 0;
    height: 0;
    border-style: solid;
}

.hero-mountains::before {
    left: 10%;
    border-width: 0 150px 300px 150px;
    border-color: transparent transparent var(--color-primary-light) transparent;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.hero-mountains::after {
    right: 10%;
    border-width: 0 200px 400px 200px;
    border-color: transparent transparent var(--color-primary) transparent;
    opacity: 0.2;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===========================
   Buttons
   =========================== */
.button {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.button-primary {
    background-color: var(--color-accent);
    color: white;
}

.button-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.button-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.button-secondary:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===========================
   Section Styles
   =========================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ===========================
   Services Section
   =========================== */
#services {
    background-color: var(--color-background);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background-color: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(95, 179, 179, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===========================
   Impact Section
   =========================== */
#impact {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
}

#impact .section-header h2 {
    color: white;
}

#impact .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.impact-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.impact-card:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.impact-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.impact-label {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: white;
}

.impact-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ===========================
   Expertise Section
   =========================== */
#expertise {
    background-color: var(--color-background-alt);
}

.expertise-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.expertise-column h3 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.expertise-list {
    list-style: none;
}

.expertise-list li {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--color-accent);
    transition: var(--transition);
}

.expertise-list li:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

/* ===========================
   Approach Section
   =========================== */
#approach {
    background-color: var(--color-background);
}

.approach-content {
    max-width: 900px;
    margin: 0 auto;
}

.approach-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.approach-lead {
    font-size: 1.5rem;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

.approach-principles {
    display: grid;
    gap: var(--spacing-lg);
}

.principle {
    padding: var(--spacing-lg);
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent);
}

.principle h4 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.principle p {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===========================
   Contact Section
   =========================== */
#contact {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: white;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.contact-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-method:hover {
    background-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-method svg {
    flex-shrink: 0;
}

/* ===========================
   Footer
   =========================== */
footer {
    background-color: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-md) 0;
}

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

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

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

    .hero-title-main,
    .hero-title-sub {
        font-size: 2.5rem;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 250px;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: right 0.3s ease;
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title-main,
    .hero-title-sub {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

    .impact-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title-main,
    .hero-title-sub {
        font-size: 1.75rem;
    }

    .impact-number {
        font-size: 2.5rem;
    }

    .contact-methods {
        flex-direction: column;
    }

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

/* ===========================
   Animations & Utilities
   =========================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===========================
   Contact Form Styles
   =========================== */
.contact-form {
    max-width: 600px;
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

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

.contact-form button[type="submit"] {
    width: 100%;
    margin-top: var(--spacing-md);
    position: relative;
}

.contact-form button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    display: none;
}

.form-message.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ade80;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.contact-divider {
    max-width: 600px;
    margin: var(--spacing-xl) auto;
    text-align: center;
    position: relative;
}

.contact-divider::before,
.contact-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.contact-divider::before {
    left: 0;
}

.contact-divider::after {
    right: 0;
}

.contact-divider span {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 0 var(--spacing-md);
    background: var(--bg-primary);
}

@media (max-width: 768px) {
    .contact-form {
        padding: var(--spacing-md);
    }
}