/* Root variables */
:root {
    --primary-color: #5c27c5;
    --secondary-color: #1f1d2b;
    --accent-color: #00bfa5;
    --accent-hover: #009e8d;
    --light-bg: #f7f8fa;
    --text-color: #333333;
    --white: #ffffff;
    --error-color: #e53935;
    --success-color: #2e7d32;
}

/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    color: var(--text-color);
    background-color: var(--white);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
header {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo img {
    height: 48px;
    width: auto;
    mix-blend-mode: screen;
    display: block;
}

nav {
    flex: 1;
    min-width: 0;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
    justify-content: center;
}

nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    white-space: nowrap;
}

nav ul li a:hover,
nav ul li a:focus {
    color: var(--accent-color);
    outline: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-btn {
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    padding: 6px 14px;
    border-radius: 3px;
    cursor: pointer;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85em;
    transition: background-color 0.3s ease;
    white-space: nowrap;
}

.lang-btn:hover {
    background-color: var(--accent-hover);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    width: 36px;
    height: 36px;
}

.hamburger span {
    display: block;
    height: 2px;
    background-color: var(--white);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero-section {
    min-height: 70vh;
    background-image: url('../images/gavel.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    background-color: rgba(0, 0, 0, 0.55);
    color: var(--white);
    padding: 60px 20px;
    text-align: center;
    width: 100%;
}

.hero-section h1 {
    font-size: 2.5em;
    margin-bottom: 0.5em;
    line-height: 1.2;
}

.hero-section .subtitle {
    font-size: 1.2em;
    margin-bottom: 1.5em;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-family: 'Montserrat', sans-serif;
    font-size: 1em;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

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

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

/* Sections */
.section {
    padding: 80px 20px;
}

.section h2 {
    font-size: 2em;
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-color);
}

.section-intro {
    max-width: 800px;
    margin: 0 auto 36px;
    text-align: center;
}

.about-section p {
    max-width: 800px;
    margin: 0 auto 1em;
}

/* Services / Startups grids */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.startups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card,
.startup-card {
    background-color: var(--light-bg);
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    border-top: 3px solid var(--primary-color);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover,
.startup-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 24px rgba(92, 39, 197, 0.13);
}

.card-icon {
    font-size: 2em;
    display: block;
    margin-bottom: 12px;
}

.service-card h3,
.startup-card h3 {
    margin-top: 0;
    margin-bottom: 8px;
    color: var(--primary-color);
    font-size: 1.1em;
}

.startup-card img {
    width: 60px;
    height: 60px;
    margin-bottom: 12px;
    display: block;
}

/* Investors */
.investors-section {
    background-color: var(--light-bg);
}

.investors-section p {
    max-width: 800px;
    margin: 0 auto 1em;
}

.investors-cta {
    display: block;
    width: fit-content;
    margin: 28px auto 0;
}

/* Contact */
.contact-info {
    list-style: none;
    padding: 0;
    margin-bottom: 28px;
}

.contact-info li {
    margin-bottom: 6px;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

.contact-section form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 700px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group--full {
    grid-column: span 2;
}

.contact-section form label {
    margin-bottom: 6px;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9em;
}

.contact-section form input,
.contact-section form textarea {
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1em;
    font-family: 'Montserrat', sans-serif;
    transition: border-color 0.2s ease;
}

.contact-section form input:focus,
.contact-section form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-section form input.error,
.contact-section form textarea.error {
    border-color: var(--error-color);
}

.contact-section form textarea {
    resize: vertical;
}

.field-error {
    font-size: 0.8em;
    color: var(--error-color);
    margin-top: 4px;
    min-height: 1.2em;
}

.form-success {
    margin-top: 24px;
    padding: 16px 20px;
    background-color: #e8f5e9;
    border-left: 4px solid var(--success-color);
    border-radius: 6px;
    color: var(--success-color);
    font-weight: 600;
}

.form-success p,
.form-error p {
    margin: 0;
}

.form-error {
    margin-top: 24px;
    padding: 16px 20px;
    background-color: #ffebee;
    border-left: 4px solid var(--error-color);
    border-radius: 6px;
    color: var(--error-color);
    font-weight: 600;
}

/* Scroll-in animation */
.fade-in {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 24px 0;
}

.footer-links {
    margin-top: 8px;
    font-size: 0.85em;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ── Responsive: Tablet (768px) ── */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 1.8em;
    }

    .section h2 {
        font-size: 1.6em;
    }

    nav {
        display: none;
        width: 100%;
        order: 3;
        padding: 12px 0 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        margin-top: 8px;
    }

    nav.nav-open {
        display: block;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 18px;
    }

    .hamburger {
        display: flex;
    }

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

    .form-group--full {
        grid-column: span 1;
    }
}

/* ── Responsive: Mobile (480px) ── */
@media (max-width: 480px) {
    .hero-section {
        min-height: 60vh;
    }

    .hero-section h1 {
        font-size: 1.4em;
    }

    .hero-section .subtitle {
        font-size: 1em;
    }

    .section {
        padding: 50px 16px;
    }

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

    .logo img {
        height: 38px;
    }
}