:root {
    --primary: #001f3f;
    --accent: #ff6600;
    --light: #f8f9fa;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: #333;
}

header {
    background: var(--primary);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo { display: flex; align-items: center; gap: 12px; }

.logo-circle {
    width: 70px; height: 70px; border-radius: 50%;
    background: white; display: flex; align-items: center; justify-content: center;
    border: 4px solid var(--accent); font-size: 32px; line-height: 1;
}

.logo-text { font-size: 1.8rem; font-weight: bold; }
.logo-subtext { color: var(--accent); font-size: 0.95rem; font-weight: 600; letter-spacing: 1px; }

nav { display: flex; gap: 25px; align-items: center; }
nav a { color: white; text-decoration: none; font-weight: 500; transition: color 0.3s; }
nav a:hover { color: var(--accent); }

.auth-buttons { display: flex; gap: 12px; }

.btn {
    padding: 10px 22px; border-radius: 6px; text-decoration: none;
    font-weight: 600; transition: all 0.3s; display: inline-block;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #e65c00; }
.btn-outline { background: transparent; color: white; border: 2px solid white; }
.btn-outline:hover { background: rgba(255,255,255,0.1); }

.hamburger { display: none; font-size: 28px; cursor: pointer; line-height: 1; user-select: none; }

.mobile-menu {
    display: none; flex-direction: column; position: absolute;
    top: 100%; left: 0; width: 100%; background: var(--primary);
    padding: 20px; box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
.mobile-menu a { color: white; padding: 12px 0; display: block; text-decoration: none; font-weight: 500; }
.mobile-menu a:hover { color: var(--accent); }
.mobile-auth { margin-top: 15px; }
.mobile-auth .btn { display: block; text-align: center; margin-bottom: 10px; }

.hero {
    background: linear-gradient(rgba(0,31,63,0.9), rgba(0,31,63,0.9)),
                url('https://picsum.photos/id/1015/1920/700') center/cover;
    color: white; text-align: center; padding: 140px 20px 90px;
}
.hero h1 { font-size: 3rem; margin-bottom: 12px; color: white; }
.hero-subtitle { font-size: 1.35rem; opacity: 0.95; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.contact-section { padding: 80px 0; }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h2,
.contact-form-wrap h2 {
    color: var(--primary);
    margin-bottom: 28px;
    font-size: 1.6rem;
}

.info-item {
    display: flex;
    gap: 18px;
    margin-bottom: 32px;
}

.info-icon {
    font-size: 1.8rem;
    width: 48px;
    flex-shrink: 0;
    line-height: 1.2;
}

.info-item h4 {
    color: var(--primary);
    margin-bottom: 4px;
    font-size: 1.05rem;
}

.info-item a {
    color: #333;
    text-decoration: none;
}

.info-item a:hover { color: var(--accent); }

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #25D366;
    color: white;
    padding: 14px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 10px;
    transition: background 0.2s, transform 0.2s;
}

.whatsapp-btn:hover {
    background: #1ebe57;
    transform: translateY(-2px);
}

.contact-form-wrap form {
    background: white;
    padding: 36px;
    border-radius: 16px;
    box-shadow: 0 10px 35px rgba(0,0,0,0.1);
}

.contact-form-wrap input,
.contact-form-wrap textarea {
    width: 100%;
    padding: 14px;
    margin-bottom: 18px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1.05rem;
    font-family: inherit;
}

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

.btn-submit {
    background: var(--accent);
    color: white;
    padding: 16px 40px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
}

.btn-submit:hover { background: #e65c00; }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.response-banner {
    background: var(--light);
    padding: 60px 0;
    text-align: center;
}

.response-banner h2 {
    color: var(--primary);
    margin-bottom: 12px;
}

.response-banner p {
    font-size: 1.15rem;
    color: #555;
    max-width: 700px;
    margin: 0 auto;
}

footer {
    background: #001233;
    color: #ccc;
    padding: 70px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.footer-logo { margin-bottom: 20px; }
.footer-logo-circle { width: 55px; height: 55px; font-size: 26px; }
.footer-logo-text { font-size: 1.6rem; color: white; }

footer h4 { color: white; margin-bottom: 15px; }
footer a { color: #ccc; text-decoration: none; }
footer a:hover { color: var(--accent); }

.footer-bottom {
    text-align: center;
    margin-top: 60px;
    padding-top: 25px;
    border-top: 1px solid #334455;
}

@media (max-width: 900px) {
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    nav, .auth-buttons { display: none; }
    .hamburger { display: block; }
    .header-container { padding: 12px 15px; }
    .logo-circle { width: 56px; height: 56px; font-size: 26px; }
    .logo-text { font-size: 1.5rem; }
    .hero { padding: 110px 15px 70px; }
    .hero h1 { font-size: 2.3rem; }
    .contact-form-wrap form { padding: 24px; }
}