:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-soft: #e0f2fe;

    --dark: #0f172a;
    --text: #111827;
    --muted: #6b7280;
}

/* GLOBAL */
body {
    font-family: 'Poppins', sans-serif;
    background: #ffffff;
    color: var(--text);
}

/* HEADER */
.header-custom {
    background: rgba(255,255,255,0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    border-bottom: 1px solid #e5e7eb;

    position: sticky;
    top: 0;
    z-index: 999;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.3rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text) !important;
    transition: 0.2s;
}

.nav-link:hover {
    color: var(--primary) !important;
}

/* HERO */
.hero {
    padding: 140px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;

    background: radial-gradient(circle at top, #e0f2fe 0%, #ffffff 60%);
}

.hero::before {
    content: "";
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(circle, rgba(14,165,233,0.25), transparent 70%);
    filter: blur(80px);
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 700;
}

.hero p {
    color: var(--muted);
    margin-top: 20px;
}

/* TEXT GRADIENT */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), #22c55e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* BUTTON */
.btn-primary {
    background: var(--primary);
    border: none;
    padding: 14px 30px;
    border-radius: 12px;

    color: white;
    font-weight: 600;

    transition: all 0.25s ease;
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(14,165,233,0.35);
}

/* SECTION */
.section {
    padding: 100px 0;
}

.bg-light-custom {
    background: #f9fafb;
}

/* CARD / GLASS */
.glass {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.card-hover {
    transition: 0.3s;
}

.card-hover:hover {
    transform: translateY(-8px);
}

/* FORM */
input, textarea, select {
    background: #fff !important;
    border: 1px solid #e5e7eb !important;
    color: #111 !important;
}

/* FOOTER */
.footer-dark {
    background: linear-gradient(180deg, #020617 0%, #0f172a 100%);
    color: #cbd5e1;
    padding: 60px 0 30px;

    position: relative;
    overflow: hidden;

    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-dark::before {
    content: "";
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 200px;
    background: radial-gradient(circle, rgba(14,165,233,0.15), transparent 70%);
    filter: blur(60px);
}

.footer-dark p {
    margin: 0;
    font-size: 0.95rem;
}

/* FLOATING WA */
.floating-wa {
    position: fixed;
    bottom: 20px;
    right: 20px;

    display: flex;
    align-items: center;
    gap: 10px;

    background: linear-gradient(135deg, #25D366, #1ebe5d);
    color: #fff;

    padding: 12px 16px;
    border-radius: 50px;

    text-decoration: none;
    font-weight: 600;
    font-size: 14px;

    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);

    transition: all 0.25s ease;
}

.floating-wa:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.25);
}

.wa-icon {
    width: 32px;
    height: 32px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: white;
    border-radius: 50%;
    padding: 6px;
}

.wa-icon img {
    width: 18px;
    height: 18px;
}

.wa-text {
    font-size: 14px;
    letter-spacing: 0.2px;
}

/* MOBILE */
@media (max-width: 576px) {
    .floating-wa {
        padding: 12px;
        border-radius: 50%;
    }
    .wa-text {
        display: none;
    }
}