/* ---------- MONOCHROMATIC GRAY DESIGN SYSTEM ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #f5f5f7;
    font-family: system-ui, 'Segoe UI', 'Helvetica Neue', sans-serif;
    color: #1e1e1e;
    line-height: 1.5;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ----- TOOLBAR (STICKY, CLEAN GRAY) ----- */
.toolbar {
    background: #ffffff;
    border-bottom: 1px solid #d4d4d8;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02), 0 1px 2px rgba(0, 0, 0, 0.03);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 0;
}

.logo {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.3px;
    color: #18181b;
    background: #f1f1f3;
    padding: 0.2rem 0.8rem;
    border-radius: 32px;
    transition: background 0.2s;
}

.logo span {
    font-weight: 400;
    color: #3f3f46;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links li a {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    color: #2c2c30;
    border-radius: 40px;
    transition: all 0.2s ease;
    background: transparent;
}

.nav-links li a:hover {
    background: #e8e8ec;
    color: #000000;
}

.nav-links li a.active {
    background: #e2e2e6;
    color: #0a0a0c;
    font-weight: 600;
    box-shadow: inset 0 0 0 1px #cfcfd4;
}

/* main content */
.main-content {
    min-height: 70vh;
    margin: 2rem 0 3rem 0;
}

/* card & typography */
h1, h2, h3 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #1c1c1e;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.8rem;
    margin: 1.5rem 0 1rem 0;
    border-left: 4px solid #9ca3af;
    padding-left: 1rem;
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.gray-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 1.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02), 0 1px 2px rgba(0, 0, 0, 0.05);
    border: 1px solid #e9e9ef;
    transition: transform 0.1s ease, box-shadow 0.2s;
}

.gray-card:hover {
    box-shadow: 0 12px 20px -12px rgba(0, 0, 0, 0.08);
}

.btn-gray {
    display: inline-block;
    background: #2c2c30;
    color: white;
    padding: 0.7rem 1.5rem;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
    text-align: center;
}

.btn-gray:hover {
    background: #0f0f12;
}

.btn-outline-gray {
    background: transparent;
    border: 1px solid #c7c7cc;
    color: #2c2c30;
}

.btn-outline-gray:hover {
    background: #f1f1f4;
    border-color: #8e8e98;
}

/* grid layouts */
.services-grid, .pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.pricing-card {
    background: white;
    border-radius: 28px;
    padding: 2rem 1.5rem;
    border: 1px solid #e4e4e9;
    text-align: center;
    transition: all 0.2s;
}

.pricing-card .price {
    font-size: 2.3rem;
    font-weight: 700;
    margin: 1rem 0;
    color: #1a1a1c;
}

.pricing-card ul {
    list-style: none;
    margin: 1.5rem 0;
}

.pricing-card li {
    margin: 0.7rem 0;
    color: #3a3a40;
}

.contact-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    margin-top: 1.5rem;
}

.contact-info, .contact-form {
    flex: 1;
    min-width: 240px;
}

.info-detail {
    margin-top: 1.5rem;
}

.info-detail p {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

input, textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #d1d1d6;
    border-radius: 20px;
    font-family: inherit;
    font-size: 1rem;
    background: #ffffff;
    transition: 0.2s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #7c7c82;
    box-shadow: 0 0 0 2px rgba(100, 100, 110, 0.2);
}

.footer {
    border-top: 1px solid #e2e2e8;
    background: #fafafc;
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
    color: #5a5a60;
    font-size: 0.85rem;
}

@media (max-width: 700px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .nav-links {
        width: 100%;
        justify-content: space-between;
    }
    .nav-links li a {
        padding: 0.5rem 0.8rem;
        font-size: 0.9rem;
    }
    h1 {
        font-size: 2rem;
    }
    .container {
        padding: 0 20px;
    }
}

.hero-about {
    background: #ffffff;
    border-radius: 32px;
    padding: 2rem;
    border: 1px solid #ececf0;
}

.stat-badge {
    display: inline-block;
    background: #f0f0f2;
    padding: 0.2rem 1rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 500;
    color: #2c2c30;
    margin-bottom: 1rem;
}

hr {
    margin: 1.5rem 0;
    border: none;
    height: 1px;
    background: #e9e9ef;
}