:root {
    --primary-color: #12273C;
    --secondary-color: #55606e;
    --accent-color: #007bff;
    --bg-light: #f4f6f9;
    --bg-dark: #12273C;
    --text-light: #fefefe;
    --transition-duration: .8s;
    --dm-bg-primary: #1e1e1e;
    --dm-bg-secondary: #2c2c2c;
    --dm-text-primary: #f5f5f5;
    --dm-text-secondary: #d4d4d4;
    --dm-link-hover: #56aaff;
    --dm-border-color: rgba(255, 255, 255, 0.1);
}

html, body {
    overflow-x: hidden;
}

html {
    overflow-y: scroll;
}

body {
    font-family: Poppins, sans-serif;
    color: var(--secondary-color);
    background-color: var(--bg-light);
    scroll-behavior: smooth;
    transition: background-color .5s ease, color .5s ease;
}

body.dark-mode {
    background-color: var(--dm-bg-primary);
    color: var(--dm-text-secondary);
}

body.dark-mode #profil-section p,
body.dark-mode .text-muted {
    color: var(--dm-text-secondary) !important;
}

body.dark-mode .top-bar, body.dark-mode .custom-navbar {
    background-color: var(--dm-bg-primary);
    box-shadow: none;
}

body.dark-mode #main-nav.scrolled {
    background: transparent;
}

body.dark-mode .navbar-nav .nav-link {
    color: var(--dm-text-secondary);
}

body.dark-mode .navbar-nav .nav-link.active,
body.dark-mode .navbar-nav .nav-link:hover {
    color: var(--dm-link-hover) !important;
}

body.dark-mode #info-section {
    background-color: var(--dm-bg-secondary);
}

body.dark-mode #info-section .card,
body.dark-mode #main-section .stat-card {
    background: rgba(255, 255, 255, 0.05);
    color: var(--dm-text-secondary);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--dm-border-color);
}

body.dark-mode .stat-card p,
body.dark-mode .stat-card h2 {
    color: var(--dm-text-primary) !important;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h5 {
    color: var(--dm-text-primary);
}

body.dark-mode p {
    color: var(--dm-text-secondary);
}

body.dark-mode #kontak-section {
    background-color: var(--dm-bg-secondary);
}

body.dark-mode a {
    color: var(--dm-text-secondary);
}

body.dark-mode a:hover {
    color: var(--dm-link-hover) !important;
}

body.dark-mode .back-to-top {
    background: var(--dm-link-hover);
    color: var(--dm-bg-primary);
}

body.dark-mode .btn-primary {
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    box-shadow: 0 4px 12px rgba(0, 198, 255, 0.3);
}

body.dark-mode .btn-primary:hover {
    box-shadow: 0 6px 16px rgba(0, 198, 255, 0.4);
}

body.dark-mode #info-section h2,
body.dark-mode #info-section p {
    color: black !important;
}

.top-bar {
    background-color: var(--primary-color);
    padding: 8px 0;
}

.top-bar .login-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: .9rem;
    transition: color .3s ease;
}

.top-bar .login-link:hover {
    color: #b0bec5;
}

.navbar-brand .logo-text {
    font-size: 1.5rem;
    font-weight: 600;
}

#main-nav {
    background-color: transparent;
    padding-top: 10px;
    padding-bottom: 0;
    transition: background-color .4s ease-in-out, backdrop-filter .4s;
    z-index: 1050;
}

#main-nav.scrolled {
    background: transparent;
}

.navbar-brand .logo-placeholder {
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 700;
}

.navbar-dark .nav-link {
    color: var(--text-light);
}

.navbar-dark .nav-link:hover {
    color: var(--accent-color) !important;
}

.navbar-light .nav-link {
    color: var(--primary-color);
}

.navbar-light .nav-link:hover {
    color: var(--accent-color) !important;
}

.custom-navbar {
    background-color: var(--bg-light);
    padding: 15px 30px;
    border-radius: 50px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, .1);
}

.navbar-nav .nav-link {
    transition: color .3s ease-in-out;
    position: relative;
    color: var(--primary-color);
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link:hover {
    color: var(--accent-color) !important;
}

.navbar-nav .nav-link::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width .3s ease-in-out, left .3s ease-in-out;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
    left: 0;
}

section {
    padding: clamp(40px, 8vw, 80px) 0;
    transition: background-color .4s ease-in-out;
    content-visibility: auto;
    contain-intrinsic-size: 1px 800px;
}

.stat-card {
    background: var(--text-light);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
    transform: translateY(0);
    transition: all .4s cubic-bezier(.25, .46, .45, .94);
}

.stat-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, .2);
}

.counter {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
    transition: transform .3s ease-in-out, box-shadow .3s ease-in-out;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, .15);
}

.card-body .card-icon {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.card-text {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

#main-section {
    padding-top: 260px;
    background-image: linear-gradient(to right bottom, #12273C, #007bff);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    z-index: 1;
}

@media (max-width:991.98px) {
    #main-nav {
        background-color: var(--primary-color) !important;
        box-shadow: none;
    }

    #main-nav.scrolled {
        background: var(--primary-color) !important;
        backdrop-filter: blur(8px);
    }

    .navbar-toggler {
        border: 2px solid var(--text-light);
        color: var(--text-light);
        padding: 5px 10px;
        border-radius: 5px;
        transition: all .3s ease;
    }

    .navbar-toggler-icon {
        filter: invert(1);
    }

    .navbar-collapse {
        background-color: var(--primary-color);
        margin-top: 10px;
        padding: 15px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, .3);
        backdrop-filter: blur(5px);
        border-radius: 0;
        padding-bottom: 25px;
    }

    .navbar-nav .nav-link {
        color: var(--text-light);
        text-align: left;
        padding: 10px 15px;
        border-radius: 8px;
        transition: all .3s ease-in-out;
    }

    .navbar-nav .nav-link.active,
    .navbar-nav .nav-link:hover {
        color: var(--accent-color) !important;
        background-color: rgba(255, 255, 255, .1);
    }

    .navbar-brand .logo-text {
        display: none
    }

    body.dark-mode .navbar-toggler-icon {
        filter: invert(0);
    }

    body.dark-mode .navbar-collapse {
        background-color: var(--dm-bg-primary);
    }
}

@supports (-webkit-touch-callout:none) {
    #main-section {
        background-attachment: scroll !important
    }
}

#main-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .2);
    z-index: -1;
}

#main-section h1, #main-section p, #main-section .stat-card {
    color: var(--text-light) !important
}

#main-section .stat-card {
    background: rgba(255, 255, 255, .8) !important
}

#main-section .stat-card p {
    color: var(--secondary-color) !important
}

#main-section .stat-card h2 {
    color: var(--primary-color) !important
}

#profil-section .image-bg {
    background-image: url('/images/smp.png');
    background-size: cover;
    background-position: center;
    height: 300px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

#profil-section .image-bg::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .3);
    border-radius: 15px;
    z-index: -1;
}

#info-section .card {
    overflow: hidden
}

#info-section .card img {
    width: 100%;
    height: 200px;
    object-fit: cover
}

#info-section .card-body {
    color: var(--secondary-color)
}

#info-section .card-title {
    font-size: 1.25rem;
    font-weight: 700
}

#info-section .card-footer {
    background-color: transparent;
    border-top: 1px solid rgba(0, 0, 0, .1);
    font-size: .8rem;
    color: var(--secondary-color);
    padding: .5rem 0;
}

#ppdb-section .payment-logo {
    width: 80px;
    height: 50px;
    object-fit: contain;
    margin: 0 10px;
    opacity: .8;
    transition: all .4s ease-in-out;
}

#ppdb-section .payment-logo:hover {
    transform: scale(1.1);
    opacity: 1
}

#kontak-section {
    background-color: var(--bg-dark);
    color: var(--text-light)
}

#kontak-section a {
    color: var(--accent-color);
    transition: color .3s ease-in-out
}

#kontak-section a:hover {
    color: #fff
}

#kontak-section .map-container {
    border-radius: 10px;
    overflow: hidden;
    height: 200px;
    width: 100%
}

#kontak-section .map-container iframe {
    border: 0;
    width: 100%;
    height: 100%
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity var(--transition-duration) ease-out, transform var(--transition-duration) ease-out
}

.animate-on-scroll.in-view {
    opacity: 1;
    transform: translateY(0)
}

.fade-in {
    opacity: 0
}

.fade-in.in-view {
    opacity: 1
}

.fade-in-up {
    transform: translateY(50px)
}

.fade-in-up.in-view {
    transform: translateY(0)
}

.slide-in-left {
    transform: translateX(-50px)
}

.slide-in-left.in-view {
    transform: translateX(0)
}

.slide-in-right {
    transform: translateX(50px)
}

.slide-in-right.in-view {
    transform: translateX(0)
}

.scale-up {
    transform: scale(.8)
}

.scale-up.in-view {
    transform: scale(1)
}

@media (max-width:991.98px) {
    #main-nav {
        background-color: var(--primary-color)
    }

    .custom-navbar {
        background-color: var(--primary-color) !important;
        box-shadow: none !important;
        border-radius: 0 !important
    }

    .navbar-toggler {
        border: 2px solid var(--text-light);
        color: var(--text-light);
        padding: 5px 10px;
        border-radius: 5px
    }

    .navbar-toggler-icon {
        filter: invert(1)
    }

    .navbar-collapse {
        background-color: var(--primary-color);
        border-radius: 10px;
        margin-top: 10px;
        padding: 15px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, .1)
    }

    .navbar-nav .nav-link {
        color: var(--text-light);
        text-align: left;
        padding-left: 10px
    }

    .navbar-nav .nav-link.active, .navbar-nav .nav-link:hover {
        color: var(--accent-color) !important;
        background-color: rgba(255, 255, 255, .1);
        border-radius: 5px
    }

    .navbar-brand .logo-text {
        display: none
    }

    body.dark-mode .navbar-toggler-icon {
        filter: invert(0);
    }
}

.row {
    overflow-x: clip
}

@supports not (overflow-x:clip) {
    .row {
        overflow-x: hidden
    }
}

@media (prefers-reduced-motion:reduce) {
    .animate-on-scroll, .fade-in, .fade-in-up, .slide-in-left, .slide-in-right, .scale-up {
        transition: none !important;
        transform: none !important
    }
}

a:focus, .btn:focus, .nav-link:focus {
    outline: 2px dashed var(--accent-color);
    outline-offset: 3px
}

h1 {
    font-size: clamp(2rem, 2.5vw + 1rem, 3.2rem)
}

.lead {
    font-size: clamp(1rem, 1vw + .6rem, 1.25rem)
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
    transition: transform .2s ease, box-shadow .2s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 123, 255, 0.4);
}

@media (max-width: 575.98px) {
    .cta-sticky {
        animation: pulse 2s infinite;
        background: linear-gradient(135deg, #007bff, #0056b3);
        font-weight: 600;
    }

    @keyframes pulse {
        0%, 100% {
            transform: translateX(-50%) scale(1);
        }

        50% {
            transform: translateX(-50%) scale(1.05);
        }
    }
}

.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1100;
    background: var(--accent-color);
    color: #fff;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease;
}

.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
}