/* ===== VARIABLES ===== */
:root {
    --primary: #3a5f8b;         /* soft blue */
    --primary-dark: #2c4b6f;
    --primary-light: #eef3f9;
    --bg-light: #f9fbfd;
    --bg-dark: #1a1a2c;
    --card-light: #ffffff;
    --card-dark: #252537;
    --text-light: #1f2a3a;
    --text-dark: #edf2f7;
    --border-light: #e2e8f0;
    --border-dark: #33334a;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.02);
    --shadow: 0 8px 20px rgba(0,0,0,0.04);
    --shadow-hover: 0 16px 30px rgba(0,0,0,0.08);
    --transition: all 0.25s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    padding-top: 80px;
    background-color: var(--bg-light);
    color: var(--text-light);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

[data-bs-theme="dark"] body {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

/* ===== NAVBAR ===== */
.navbar {
    background-color: rgba(255,255,255,0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

[data-bs-theme="dark"] .navbar {
    background-color: rgba(30,30,47,0.85);
    border-bottom: 1px solid var(--border-dark);
}

.navbar-brand {
    font-weight: 600;
    color: var(--primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--text-light);
    margin: 0 0.25rem;
    padding: 0.5rem 1rem;
    border-radius: 40px;
    transition: var(--transition);
}

[data-bs-theme="dark"] .navbar-nav .nav-link {
    color: var(--text-dark);
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link:hover {
    color: var(--primary);
    background-color: var(--primary-light);
}

[data-bs-theme="dark"] .navbar-nav .nav-link.active,
[data-bs-theme="dark"] .navbar-nav .nav-link:hover {
    background-color: rgba(58,95,139,0.2);
    color: #fff;
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-light);
    border-radius: 50px;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

[data-bs-theme="dark"] .theme-toggle {
    border-color: var(--border-dark);
    color: var(--text-dark);
}

.theme-toggle:hover {
    border-color: var(--primary);
}

.theme-toggle .light-icon,
.theme-toggle .dark-icon {
    font-size: 1.2rem;
}

[data-bs-theme="light"] .theme-toggle .dark-icon,
[data-bs-theme="dark"] .theme-toggle .light-icon {
    display: none;
}

/* ===== BUTTONS ===== */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
    font-weight: 500;
    border-radius: 50px;
    padding: 0.5rem 1.8rem;
    transition: var(--transition);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: 0 8px 18px rgba(58,95,139,0.25);
    transform: translateY(-2px);
}

.btn-outline-secondary {
    border-radius: 50px;
    padding: 0.5rem 1.8rem;
    font-weight: 500;
    border-color: var(--border-light);
    color: var(--text-light);
}

[data-bs-theme="dark"] .btn-outline-secondary {
    border-color: var(--border-dark);
    color: var(--text-dark);
}

.btn-outline-secondary:hover {
    background-color: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary-dark);
}

/* ===== HERO ===== */
.hero {
    padding: 3rem 0;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
}

.hero h1 span {
    color: var(--primary);
    position: relative;
    display: inline-block;
}
.hero h1 span::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(58,95,139,0.15);
    z-index: -1;
    border-radius: 4px;
}

.badge-feature {
    background-color: var(--card-light);
    padding: 0.5rem 1rem;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    display: inline-flex;
    align-items: center;
}

[data-bs-theme="dark"] .badge-feature {
    background-color: var(--card-dark);
    border-color: var(--border-dark);
    color: var(--text-dark);
}

.hero-visual {
    position: relative;
    height: 400px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-bg {
    position: absolute;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(58,95,139,0.1) 0%, rgba(58,95,139,0) 70%);
    border-radius: 50%;
    animation: pulse 6s infinite;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--card-light);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    animation: float 5s ease-in-out infinite;
}

[data-bs-theme="dark"] .floating-icon {
    background: var(--card-dark);
    border-color: var(--border-dark);
}

.icon-1 { top: 30px; left: 20px; animation-delay: 0s; }
.icon-2 { top: 100px; right: 0; animation-delay: 0.5s; }
.icon-3 { bottom: 60px; left: 50px; animation-delay: 1s; }
.icon-4 { bottom: 120px; right: 40px; animation-delay: 1.5s; }
.icon-5 { top: 180px; left: 90px; animation-delay: 2s; }

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 0.5; }
}

/* ===== SERVICE CARDS ===== */
.services {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

[data-bs-theme="dark"] .services {
    background-color: var(--bg-dark);
}

.service-card {
    background-color: var(--card-light);
    border-radius: 24px;
    padding: 1.8rem 1.2rem 1.2rem;
    height: 100%;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    display: flex;
    flex-direction: column;
}

[data-bs-theme="dark"] .service-card {
    background-color: var(--card-dark);
    border-color: var(--border-dark);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.icon-box {
    width: 56px;
    height: 56px;
    background-color: var(--primary-light);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    color: var(--primary);
    font-size: 1.8rem;
    transition: var(--transition);
}

.service-card:hover .icon-box {
    background-color: var(--primary);
    color: white;
}

.service-card h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.service-card p {
    color: #64748b;
    margin-bottom: 1.2rem;
    font-size: 0.9rem;
    flex: 1;
}

[data-bs-theme="dark"] .service-card p {
    color: #a0a8b8;
}

.card-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    margin-top: auto;
}

.card-link i {
    transition: transform 0.2s;
}

.card-link:hover i {
    transform: translateX(6px);
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
    padding: 5rem 0;
    background-color: var(--primary-light);
}

[data-bs-theme="dark"] .how-it-works {
    background-color: #20202e;
}

.step-card {
    background-color: var(--card-light);
    border-radius: 32px;
    padding: 2.5rem 1.5rem;
    height: 100%;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

[data-bs-theme="dark"] .step-card {
    background-color: var(--card-dark);
    border-color: var(--border-dark);
}

.step-card:hover {
    transform: scale(1.02);
    border-color: var(--primary);
}

.step-number {
    width: 70px;
    height: 70px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 600;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 20px rgba(58,95,139,0.2);
}

.step-card h5 {
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.step-card p {
    color: #64748b;
    font-size: 0.95rem;
}

[data-bs-theme="dark"] .step-card p {
    color: #a0a8b8;
}

/* ===== CTA ===== */
.cta {
    padding: 5rem 0;
    background-color: var(--card-light);
}

[data-bs-theme="dark"] .cta {
    background-color: var(--card-dark);
}

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--card-light);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-light);
}

[data-bs-theme="dark"] .footer {
    background-color: var(--card-dark);
    border-color: var(--border-dark);
}

.footer h6 {
    font-weight: 600;
    margin-bottom: 1.2rem;
    font-size: 1rem;
    letter-spacing: 0.3px;
}

.footer ul {
    list-style: none;
    padding: 0;
}

.footer ul li {
    margin-bottom: 0.6rem;
}

.footer ul li a {
    color: inherit;
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s, color 0.2s;
    font-size: 0.9rem;
}

.footer ul li a:hover {
    opacity: 1;
    color: var(--primary);
}

.social a {
    display: inline-block;
    margin-right: 1rem;
    font-size: 1.2rem;
    color: inherit;
    opacity: 0.7;
    transition: opacity 0.2s, color 0.2s;
}

.social a:hover {
    opacity: 1;
    color: var(--primary);
}

hr {
    background-color: var(--border-light);
    opacity: 0.5;
    margin: 2rem 0;
}

[data-bs-theme="dark"] hr {
    background-color: var(--border-dark);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .hero {
        text-align: center;
        min-height: auto;
        padding: 4rem 0;
    }
    .hero .d-flex {
        justify-content: center;
    }
    .hero-visual {
        margin-top: 3rem;
        height: 300px;
    }
}

@media (max-width: 768px) {
    .navbar-nav {
        margin-top: 1rem;
    }
    .theme-toggle {
        margin-right: 0.5rem;
    }
    .step-card {
        padding: 2rem 1rem;
    }
}

/* ===== DROPDOWN CUSTOM ===== */
.dropdown-menu {
    background-color: var(--card-light);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 0.5rem;
    box-shadow: var(--shadow);
}

[data-bs-theme="dark"] .dropdown-menu {
    background-color: var(--card-dark);
    border-color: var(--border-dark);
}

.dropdown-item {
    border-radius: 12px;
    padding: 0.5rem 1rem;
    color: var(--text-light);
    transition: var(--transition);
}

[data-bs-theme="dark"] .dropdown-item {
    color: var(--text-dark);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--primary-light);
    color: var(--primary);
}

[data-bs-theme="dark"] .dropdown-item:hover,
[data-bs-theme="dark"] .dropdown-item:focus {
    background-color: rgba(58,95,139,0.2);
    color: #fff;
}

/* Pastikan dropdown tidak terpotong di mobile */
@media (max-width: 992px) {
    .dropdown-menu {
        border: none;
        background: transparent;
        box-shadow: none;
        padding-left: 1rem;
    }
    .dropdown-item {
        color: inherit;
    }
}