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

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #111827;
    background-color: #f8fafc;
    line-height: 1.5;
}

.container {
    width: min(1100px, 100%);
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* HEADER */

.site-header {
    background: #0f172a;
    color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-header h1 {
    margin: 0;
    font-size: 1.4rem;
}

.tagline {
    margin: 0.2rem 0 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

.nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.nav a {
    color: #e5e7eb;
    margin-left: 1rem;
    text-decoration: none;
    font-size: 0.95rem;
}

.nav a:hover {
    color: #38bdf8;
}

/* Lang switch */

.lang-switch {
    margin-left: 1rem;
    display: inline-flex;
    background: #1e293b;
    border-radius: 999px;
    overflow: hidden;
}

.lang-btn {
    border: none;
    background: transparent;
    color: #e5e7eb;
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
    cursor: pointer;
}

.lang-btn.active {
    background: #38bdf8;
    color: #0f172a;
}

/* HERO */

.hero {
    background: linear-gradient(135deg, #0f172a, #1d4ed8);
    color: #fff;
    padding: 3rem 0 3.5rem;
}

.hero-inner h2 {
    font-size: clamp(1.8rem, 3vw, 2.3rem);
    margin-top: 0;
    margin-bottom: 1rem;
}

.hero-inner p {
    max-width: 700px;
    font-size: 1rem;
}

/* SECTIONS */

.section {
    padding: 2.5rem 0;
}

.section-alt {
    background-color: #e5e7eb33;
}

.section h2 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.6rem;
}

/* CARDS */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.card {
    background: #fff;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.card h3 {
    margin-top: 0;
}

/* CONTACT LAYOUT */

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.9fr);
    gap: 2rem;
}

.contact-info {
    font-size: 0.95rem;
}

.contact-info p {
    margin: 0.2rem 0;
}

.contact-info .small {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: #4b5563;
}

/* CONTACT FORM */

.contact-form {
    background: #fff;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.form-toggle {
    display: inline-flex;
    border-radius: 999px;
    background-color: #e5e7eb;
    padding: 0.2rem;
    margin-bottom: 1.25rem;
}

.toggle-btn {
    border: none;
    background: transparent;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-size: 0.9rem;
    cursor: pointer;
}

.toggle-btn.active {
    background-color: #0f172a;
    color: #fff;
}

.form {
    display: block;
}

.form.hidden {
    display: none;
}

.form h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.form-row {
    margin-bottom: 0.85rem;
    display: flex;
    flex-direction: column;
}

.form-row label {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

input,
textarea {
    border: 1px solid #cbd5e1;
    border-radius: 0.6rem;
    font: inherit;
    padding: 0.55rem 0.7rem;
    background-color: #fff;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.15);
}

textarea {
    resize: vertical;
}

.primary-btn {
    border: none;
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
    font: inherit;
    font-size: 0.95rem;
    background: #2563eb;
    color: #fff;
    cursor: pointer;
    margin-top: 0.5rem;
}

.primary-btn:hover {
    background: #1d4ed8;
}

/* THANK YOU MESSAGE */

.thank-you {
    text-align: center;
    background: #dcfce7;
    border: 1px solid #86efac;
    color: #166534;
    padding: 1rem;
    border-radius: 0.75rem;
    font-weight: 500;
    margin-top: 1rem;
}

.hidden {
    display: none !important;
}

/* FOOTER */

.site-footer {
    padding: 1.2rem 0;
    background: #0f172a;
    color: #9ca3af;
    font-size: 0.85rem;
    text-align: center;
    margin-top: 2rem;
}

/* RESPONSIVE */

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav {
        margin-top: 0.5rem;
    }

    .nav a {
        margin-left: 0;
        margin-right: 1rem;
        margin-bottom: 0.3rem;
    }

    .lang-switch {
        margin-left: 0;
        margin-top: 0.3rem;
    }

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