/* Global Styles */
:root {
    /* Fresh Tech Palette (Indigo/Cyan) */
    --primary-color: #0f172a;
    /* Slate 900 */
    --secondary-color: #334155;
    /* Slate 700 */
    --accent-color: #06b6d4;
    /* Cyan 500 */
    --accent-glow: #67e8f9;
    /* Cyan 300 */
    --text-color: #1e293b;
    /* Slate 800 */
    --light-bg: #f8fafc;
    /* Slate 50 */
    --white: #ffffff;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --spacing-unit: 1rem;
    --container-max-width: 1100px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

/* Utilities */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

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

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

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

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

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

.bg-primary h2 {
    color: var(--white);
}

.mt-2 {
    margin-top: 2rem;
}

.mt-3 {
    margin-top: 3rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.max-w-600 {
    max-width: 600px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

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

.btn-white:hover {
    background-color: transparent;
    color: var(--white);
}

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

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

/* Navbar */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
}

.logo img {
    height: 50px;
    /* Increased size */
    width: auto;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

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

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

/* Hero Section */
.hero {
    height: 90vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

/* Abstract Background Shape - Optional */
.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 70%;
    height: 140%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 0;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-image {
    flex: 1;
    max-width: 500px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
    /* Shadow color updated */
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-sub {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 2.5rem;
    max-width: 650px;
}

.hero-secondary-text {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #777;
    font-style: italic;
}

/* Section Header */
.section-header {
    margin-bottom: 3rem;
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

/* Lead Text */
.lead-text {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    color: #444;
}

/* Cards (Capabilities) */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: transform var(--transition-speed);
}

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

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.card p {
    color: #666;
    font-size: 0.95rem;
}

/* Features List (Problem / Solution) */
.feature-list,
.check-list {
    max-width: 800px;
    margin: 0 auto;
}

.feature-list li,
.check-list li {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    position: relative;
    padding-left: 2rem;
}

.feature-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #cc0000;
    /* Subtle warning color for problems */
    font-weight: bold;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00cc66;
    /* Success color */
    font-weight: bold;
}

/* Pills (Markets) */
.pills-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.pill {
    background-color: #eef4f9;
    color: var(--primary-color);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    border: 1px solid rgba(0, 63, 114, 0.1);
}

/* Recognition Box (TUBITAK) */
.recognition-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--white);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.recognition-text h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.recognition-logos {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    justify-content: center;
}

.logo-placeholder {
    width: 150px;
    height: 80px;
    background-color: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    font-weight: bold;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Process Steps */
.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    text-align: center;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-weight: 700;
    font-size: 1.25rem;
}

/* Simple Form */
.simple-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
    text-align: left;
}

.simple-form input,
.simple-form textarea {
    padding: 1rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-family: inherit;
}

.simple-form input::placeholder,
.simple-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.simple-form input:focus,
.simple-form textarea:focus {
    outline: none;
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.2);
}

/* Footer */
.footer {
    padding: 3rem 0;
    background-color: #f1f1f1;
    border-top: 1px solid #e0e0e0;
    font-size: 0.9rem;
    color: #666;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-links a {
    margin-left: 1.5rem;
    display: flex;
    align-items: center;
}

.social-icon {
    width: 24px;
    height: 24px;
    fill: var(--secondary-color);
    transition: fill var(--transition-speed);
}

.footer-links a:hover .social-icon {
    fill: var(--accent-color);
}

.footer-note {
    text-align: center;
    margin-top: 1rem;
    opacity: 0.8;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        height: auto;
        min-height: auto;
        padding: 6rem 0 3rem;
        /* Add top padding for navbar */
    }

    .hero-container {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .hero-text {
        margin-bottom: 2rem;
        max-width: 100%;
    }

    .hero-image {
        max-width: 100%;
        margin-top: 1rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .nav-links {
        display: none;
    }

    /* Simplified for mobile - could add hamburger later */
    .recognition-logos {
        flex-direction: column;
        align-items: center;
    }

    .process-steps {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-links a {
        margin: 0 0.5rem;
    }
}