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

body {
    font-family: 'Inter', sans-serif;
    background: #f0f4ff;
    color: #0f172a;
    line-height: 1.6;
}

a {
    text-decoration: none;
}

.lang-toggle {
    position: fixed;
    top: 15px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 8px;
    background: white;
    padding: 6px 12px;
    border-radius: 40px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.lang-btn {
    border: none;
    background: transparent;
    padding: 6px 14px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s;
    color: #64748b;
}

.lang-btn.active {
    background: #2563eb;
    color: white;
}

.lang-btn:hover {
    background: #dbeafe;
}

header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    background: white;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    margin-top: 80px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    height: 70px;
    width: auto;
}

.logo-text h1 {
    font-size: 1.3rem;
    font-weight: 900;
    line-height: 1.1;
    color: #0f172a;
}

.logo-text h1 span {
    color: #2563eb;
}

.tagline {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #2563eb;
}

.header-contact {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.whatsapp-header,
.email-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #0f172a;
    transition: color 0.3s;
}

.whatsapp-header {
    color: #25d366;
}

.whatsapp-header:hover,
.email-header:hover {
    color: #2563eb;
}

.hero {
    max-width: 1200px;
    margin: 30px auto;
    padding: 40px 30px;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    color: white;
}

.hero-content {
    flex: 1;
    min-width: 280px;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 10px;
}

.hero-sub {
    font-size: 1.2rem;
    font-weight: 600;
    opacity: 0.9;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 25px;
}

.hero-badges span {
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 16px;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-badges span i {
    color: #facc15;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.btn-order-big {
    background: #facc15;
    color: #0f172a;
    padding: 18px 40px;
    border-radius: 60px;
    font-weight: 900;
    font-size: 1.4rem;
    box-shadow: 0 8px 30px rgba(250, 204, 21, 0.4);
    transition: all 0.3s;
    display: inline-block;
}

.btn-order-big:hover {
    transform: scale(1.04);
    box-shadow: 0 12px 40px rgba(250, 204, 21, 0.6);
}

.btn-whatsapp-big {
    background: #25d366;
    color: white;
    padding: 18px 35px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
    transition: all 0.3s;
    display: inline-block;
}

.btn-whatsapp-big:hover {
    transform: scale(1.04);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.6);
}

.hero-image {
    flex: 0 0 200px;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.quote-calculator {
    max-width: 1200px;
    margin: 0 auto 30px;
    padding: 30px;
    background: white;
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.quote-calculator h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    color: #0f172a;
}

.calc-info {
    color: #2563eb;
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 1rem;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.calc-item label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: #475569;
}

.calc-item select,
.calc-item input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    font-size: 1rem;
    font-weight: 500;
    background: #f8fafc;
    transition: border 0.3s;
}

.calc-item select:focus,
.calc-item input:focus {
    border-color: #2563eb;
    outline: none;
}

.calc-result {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: #f1f5f9;
    border-radius: 16px;
    margin-top: 10px;
}

.calc-result span {
    font-size: 1.1rem;
    font-weight: 600;
}

.price-display {
    font-size: 2.2rem !important;
    font-weight: 900 !important;
    color: #2563eb;
}

.price-note {
    font-size: 0.9rem !important;
    color: #64748b;
    font-weight: 400 !important;
}

.btn-quote {
    background: #25d366;
    color: white;
    padding: 14px 30px;
    border-radius: 60px;
    font-weight: 700;
    margin-left: auto;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.btn-quote:hover {
    transform: scale(1.04);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.subjects {
    max-width: 1200px;
    margin: 0 auto 30px;
    padding: 30px;
    background: white;
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.subjects h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.subject-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.subject-grid span {
    background: #dbeafe;
    padding: 10px 22px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #1e40af;
    transition: all 0.3s;
}

.subject-grid span:hover {
    background: #2563eb;
    color: white;
    transform: scale(1.04);
}

.why-us {
    max-width: 1200px;
    margin: 0 auto 30px;
    padding: 30px;
    background: white;
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.why-us h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.why-card {
    padding: 25px 20px;
    background: #f8fafc;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.why-card:hover {
    border-color: #2563eb;
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.1);
}

.why-card i {
    font-size: 2.5rem;
    color: #2563eb;
    margin-bottom: 12px;
}

.why-card h4 {
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.why-card p {
    font-size: 0.9rem;
    color: #475569;
}

.order-now {
    max-width: 1200px;
    margin: 0 auto 30px;
    padding: 50px 30px;
    background: linear-gradient(135deg, #facc15 0%, #f59e0b 100%);
    border-radius: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(250, 204, 21, 0.3);
}

.order-content h2 {
    font-size: 3rem;
    font-weight: 900;
    color: #0f172a;
    margin-bottom: 10px;
}

.order-big {
    font-size: 2.2rem;
    font-weight: 900;
    color: #0f172a;
    margin-bottom: 25px;
    letter-spacing: 1px;
}

.order-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.order-btn-primary {
    background: #25d366;
    color: white;
    padding: 20px 45px;
    border-radius: 60px;
    font-weight: 800;
    font-size: 1.3rem;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.order-btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
}

.order-btn-secondary {
    background: #0f172a;
    color: white;
    padding: 20px 45px;
    border-radius: 60px;
    font-weight: 800;
    font-size: 1.3rem;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.order-btn-secondary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.3);
}

.order-note {
    margin-top: 20px;
    font-size: 1.1rem;
    font-weight: 600;
    color: #0f172a;
}

footer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px;
    background: #0f172a;
    border-radius: 30px 30px 0 0;
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #facc15;
}

.footer-col p,
.footer-col a {
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 2;
    display: block;
}

.footer-col a:hover {
    color: #facc15;
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding-top: 20px;
    text-align: center;
    color: #64748b;
    font-size: 0.9rem;
}

.sticky-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: white;
    padding: 16px 24px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 999;
    transition: all 0.3s;
}

.sticky-whatsapp:hover {
    transform: scale(1.08);
}

.sticky-whatsapp i {
    font-size: 1.8rem;
}

@media (max-width: 768px) {
    .lang-toggle {
        top: 10px;
        right: 10px;
        padding: 4px 8px;
    }
    .lang-btn {
        font-size: 0.65rem;
        padding: 4px 10px;
    }
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 15px;
        margin-top: 70px;
    }
    .logo-container {
        width: 100%;
    }
    .logo-img {
        height: 50px;
    }
    .logo-text h1 {
        font-size: 1rem;
    }
    .header-contact {
        width: 100%;
        justify-content: flex-start;
    }
    .hero {
        padding: 25px 20px;
        flex-direction: column;
        text-align: center;
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .hero-badges {
        justify-content: center;
    }
    .hero-buttons {
        justify-content: center;
    }
    .btn-order-big {
        font-size: 1rem;
        padding: 14px 25px;
    }
    .btn-whatsapp-big {
        font-size: 1rem;
        padding: 14px 25px;
    }
    .calc-grid {
        grid-template-columns: 1fr 1fr;
    }
    .calc-result {
        flex-direction: column;
        text-align: center;
    }
    .btn-quote {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
    .order-content h2 {
        font-size: 2rem;
    }
    .order-big {
        font-size: 1.4rem;
    }
    .order-btn-primary,
    .order-btn-secondary {
        font-size: 1rem;
        padding: 14px 25px;
        width: 100%;
        justify-content: center;
    }
    .sticky-whatsapp {
        padding: 12px 18px;
        font-size: 0.9rem;
        bottom: 15px;
        right: 15px;
    }
    .sticky-whatsapp span {
        display: none;
    }
}

@media (max-width: 480px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }
    .hero-image {
        flex: 0 0 120px;
    }
}