@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(100px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-50px) translateX(-50%);
    }

    to {
        opacity: 1;
        transform: translateY(0) translateX(-50%);
    }
}

@keyframes slideInUpAccent {
    from {
        opacity: 0;
        transform: translateY(50px) translateX(-50%);
    }

    to {
        opacity: 1;
        transform: translateY(0) translateX(-50%);
    }
}

/* Mengatur delay agar elemen muncul bergantian */

/* Variasi delay untuk elemen berurutan (stagger effect) */
.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* --- Penerapan pada Elemen --- */

/* Delay berbeda untuk setiap daun agar lebih dinamis */


/* State dasar sebelum animasi */
.animate-hidden {
    opacity: 0;
    transform: translateY(40px);
    /* Muncul dari bawah */
    transition: all 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    visibility: hidden;
}

/* State saat elemen masuk ke viewport */
.animate-show {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

/* --- Animasi Pesan Penutup (Fade In saja) --- */


/* --- Animasi Thank You (Expand Letter Spacing) --- */
.thank-you-text.animate-hidden {
    opacity: 0;
    letter-spacing: 10px;
    transform: scale(1.1);
    transition: all 1.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.thank-you-text.animate-show {
    opacity: 1;
    letter-spacing: -2px;
    /* Kembali ke gaya rapat sesuai gambar */
    transform: scale(1);
}

/* --- Animasi Foto Closing (Zoom Out ke Frame) --- */
.closing-photo.animate-hidden {
    opacity: 0;
    transform: scale(1.05);
    transition: all 1.5s ease-out;
}

.closing-photo.animate-show {
    opacity: 1;
    transform: scale(1);
}

/* Mengaktifkan scroll halus untuk seluruh halaman */
html {
    scroll-behavior: smooth;
}

/* --- CUSTOM SCROLLBAR --- */
/* Ukuran scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

/* Bagian jalur (track) scrollbar */
::-webkit-scrollbar-track {
    background: #f1f1f1;
}

/* Bagian batang (thumb) scrollbar */
::-webkit-scrollbar-thumb {
    background: #8da1b9;
    /* Warna biru sesuai Save The Date Anda */
    border-radius: 10px;
}

/* Batang scrollbar saat diarahkan kursor (hover) */
::-webkit-scrollbar-thumb:hover {
    background: #343638;
    /* Warna gelap sesuai tema card Anda */
}

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

body,
html {
    overflow-x: hidden;
    /* Mencegah scroll horizontal seluruh halaman */
    margin: 0;
    padding: 0;
    width: 100%;
}

.wrapper {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
}

/* Reset & Base Font */
body,
html {

    font-family: 'Serif', 'Georgia', serif;
    color: #6d5d4b;
    background-color: #1a2a33;

}

.wrapper {
    display: flex;
    height: 100vh;
    overflow: hidden;
    /* Mencegah seluruh halaman scroll */
}

/* Class khusus untuk nama pengantin */

/* --- BAGIAN KIRI (FIXED/STATIS) --- */
/* --- Sidebar Kiri (Desktop) --- */
.left-section {
    color: #ffffff;
    /* Mengganti ke putih agar lebih kontras di navy */
    flex: 1.4;
    background: url('../images/bg-seminar.webp') no-repeat center center;
    background-size: cover;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    /* Konten di bawah sesuai gambar referensi */
    padding: 60px;
    position: relative;
    overflow: hidden;
}

/* Overlay Gradasi Biru Gelap (Vignette) */
.left-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradasi dari transparan ke biru gelap pekat sesuai tema Gift Section */
    background: linear-gradient(to top, rgba(10, 10, 46, 0.9) 0%, rgba(0, 0, 0, 0) 60%);
    z-index: 1;
}

.left-content {
    position: relative;
    z-index: 2;
    text-align: left;
    /* Sesuai layout visual gambar */
    padding-bottom: 20px;
}

.left-content h2 {
    font-family: sans-serif;
    font-weight: 400;
    letter-spacing: 4px;
    font-size: 0.9rem;
    text-transform: uppercase;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.8);
}

.left-content h1 {
    font-family: 'Playfair Display', serif;
    /* Font utama tema */
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 15px;
}

.left-content p {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: #bfa37e;
    /* Menggunakan aksen Gold/Bronze dari tema Save The Date */
}

/* Dekorasi Tambahan: Bunga di pojok bawah */
.left-section::after {
    content: "";
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 250px;
    height: 250px;
    /* background: url('blu-fllower.webp') no-repeat center center; */
    background-size: contain;
    opacity: 0.4;
    z-index: 1;
    pointer-events: none;
}

/* Ukuran font diperbesar agar Beau Rivage terlihat jelas */

/* --- BAGIAN Kanan (SCROLLABLE) --- */
.right-section {
    flex: 1;
    overflow-y: auto;
    /* background: url('blue-background.jpg') no-repeat center center;
            background-size: cover; */
    background-color: #ffffff;
    overflow-x: hidden;
    scroll-behavior: smooth;
}


.section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    text-align: center;
    /* border-bottom: 1px solid rgba(255, 255, 255, 0.0); */
}

@media (max-width: 1024px) {
    .left-section {
        display: none;
        /* Sembunyikan bagian kiri */
    }

    .right-section {
        flex: 1;
        width: 100%;
    }
}

/* first/ */
/* Container Utama */
/* Import Font Modern & Bold */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,700;0,900;1,400&display=swap');

.first-screen {
    position: relative;
    height: 100dvh;
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    font-family: 'Montserrat', sans-serif;
    text-align: center;
    background-color: #030a16;
    /* Fallback warna gelap cyber */
}

.content {
    height: 77dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 2 !important;
    padding: 20px;
    max-width: 450px;
    width: 100%;
    box-sizing: border-box;
}

/* Background Image Menggunakan File Baru */
.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgb(0 0 0 / 81%) 0%, rgb(0 0 0 / 43%) 100%), url('../images/bg-seminar.webp') no-repeat center center;
    background-size: cover;
    background-position: center;
    z-index: 0;
    transform: scale(1.1);
    animation: zoomBg 10s ease forwards;
}

/* Vignette overlay disesuaikan lebih gelap merata */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(3, 10, 22, 0.4) 0%, rgba(3, 10, 22, 0.85) 100%);
    z-index: 1 !important;
}

/* --- Penataan Konten & Tipografi Baru --- */

.sub-title {
    font-size: 0.85rem;
    letter-spacing: 2px;
    color: #4da6ff;
    /* Aksen biru muda menyesuaikan background */
    font-weight: 700;
    margin-bottom: 15px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.3s;
}

/* Container Mockup Buku 3D */
.book-container {
    margin: 10px 0 20px 0;
    perspective: 1000px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.5s;
}

.book-mockup {
    max-height: 180px;
    object-fit: contain;
    filter: drop-shadow(0px 10px 20px rgba(0, 0, 0, 0.6));
    animation: floatBook 4s ease-in-out infinite alternate;
}

.main-title {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin: 5px 0;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.7s;
}

.tagline {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #cccccc;
    margin: 0 0 10px 0;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.8s;
}

.quote {
    font-size: 0.8rem;
    font-style: italic;
    color: #7dd3fc;
    max-width: 85%;
    line-height: 1.4;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.9s;
}

/* --- Area Tamu --- */
.guest-section {
    margin-top: auto;
    /* Mendorong ke bawah */
    margin-bottom: 25px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 1.1s;
    width: 100%;
}

.guest-prefix {
    font-size: 0.75rem;
    color: #a3a3a3;
    line-height: 1.4;
    margin-bottom: 5px;
}

.guest-name {
    font-size: 1.6rem !important;
    font-weight: 700 !important;
    color: #ffffff;
    margin: 5px 0;
    display: inline-block;
}

.badge-vip {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: #d96b20;
    font-weight: 700;
    margin-top: 5px;
}

/* --- Tombol Warna Oranye Solid --- */
.btn-open {
    margin-bottom: 3vh;
    padding: 14px 50px;
    border-radius: 30px;
    border: none;
    background: #d96b20;
    /* Sesuai dengan warna tombol di gambar referensi */
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(217, 107, 32, 0.4);
    transition: all 0.3s ease;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 1.3s;
}

.btn-open:hover {
    transform: scale(1.05);
    background: #f07b27;
    box-shadow: 0 6px 20px rgba(217, 107, 32, 0.6);
}

/* --- Sistem Animasi --- */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(25px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomBg {
    from {
        transform: scale(1.15);
    }

    to {
        transform: scale(1.0);
    }
}

/* Animasi melayang halus khusus untuk buku */
@keyframes floatBook {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    100% {
        transform: translateY(-8px) rotate(1deg);
    }
}

/* --- Efek Partikel Bola Melayang (Dipertahankan) --- */
.circles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.circle {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    filter: blur(4px);
    animation: floating 15s infinite ease-in-out;
}

.c1 {
    width: 25px;
    height: 25px;
    top: 15%;
    left: 10%;
    animation-duration: 14s;
}

.c2 {
    width: 35px;
    height: 35px;
    top: 35%;
    right: 8%;
    animation-duration: 18s;
}

.c3 {
    width: 20px;
    height: 20px;
    bottom: 40%;
    left: 12%;
    animation-duration: 12s;
}

.c4 {
    width: 30px;
    height: 30px;
    bottom: 25%;
    right: 15%;
    animation-duration: 16s;
}

@keyframes floating {
    0% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(20px, -30px);
    }

    100% {
        transform: translate(0, 0);
    }
}

/* opening */
/* --- Penataan Struktur Opening Section --- */
.opening-section {
    position: relative;
    min-height: 100vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    color: #ffffff;
    box-sizing: border-box;
    padding: 60px 20px;
    background-color: #030a16;
}

.opening-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgb(0 0 0 / 81%) 0%, rgb(0 0 0 / 43%) 100%), url('../images/bg-seminar.webp') no-repeat center center;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

/* Overlay gelap agar teks info mudah dibaca */
.opening-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.opening-content {
    position: relative;
    z-index: 2;
    max-width: 450px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* --- Tipografi & Ornamen --- */
.label-welcome {
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: #7dd3fc;
    font-weight: 700;
    margin-bottom: 5px;
}

.event-name {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 1px;
    line-height: 1.3;
    margin: 0 0 20px 0;
}

.event-name span {
    color: #d96b20;
    /* Warna aksen oranye math-theme */
}

.divider {
    width: 50px;
    height: 3px;
    background: #d96b20;
    margin-bottom: 40px;
    border-radius: 2px;
}

/* --- Desain Card Informasi Acara --- */
.info-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    width: 100%;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    text-align: left;
    box-sizing: border-box;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.info-icon {
    background: rgb(217 107 32);
    color: #ffffff;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.info-text h3 {
    font-size: 0.75rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 1px;
    margin: 0 0 5px 0;
}

.info-text .highlight-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: #d96b20;
    text-shadow: -4px 1px 20px rgb(255 255 255);
    margin: 0;
}

.info-text .sub-note {
    font-size: 0.75rem;
    color: #ffffff;
    margin: 4px 0 0 0;
    line-height: 1.3;
}


/* ==========================================================================
   SISTEM ANIMASI ON-SCROLL (Menggunakan trigger .reveal dari IntersectionObserver)
   ========================================================================== */

/* State awal (sebelum di-scroll / sebelum class .reveal aktif) */
.opening-section .anim-fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1),
        transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

/* State akhir (ketika section sudah masuk viewport dan mendapat class .reveal) */
.opening-section.reveal .anim-fade-up {
    opacity: 1;
    transform: translateY(0);
}

/* Efek Staggered Manual Tambahan menggunakan transition-delay agar muncul bergantian */
.opening-section.reveal .label-welcome {
    transition-delay: 0.1s;
}

.opening-section.reveal .event-name {
    transition-delay: 0.2s;
}

.opening-section.reveal .divider {
    transition-delay: 0.3s;
}

.opening-section.reveal .info-card:nth-of-type(1) {
    transition-delay: 0.4s;
}

.opening-section.reveal .info-card:nth-of-type(2) {
    transition-delay: 0.5s;
}

.opening-section.reveal .info-card:nth-of-type(3) {
    transition-delay: 0.6s;
}

/* quotes  */
/* --- Quotes Section Layout --- */
.quotes-section {
    min-height: 50vh;
    position: relative;
    padding: 100px 30px;
    background-color: #0a0a2e;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.quotes-container {
    max-width: 600px;
    width: 100%;
    position: relative;
}

/* --- Tipografi --- */
.quotes-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    /* Warna emas muda/bronze untuk aksen title */
    margin-bottom: 20px;
}

.quotes-line {
    width: 40px;
    height: 1px;
    background-color: #bfa37e;
    margin: 0 auto 30px;
}

.quotes-text {
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 20px;
}

.quotes-subtext {
    font-family: sans-serif;
    font-size: 1.5rem;
    letter-spacing: 1px;
    color: #bfa37e;
}

/* --- State Awal Animasi (Hidden) --- */
.quotes-section .quotes-title,
.quotes-section .quotes-line,
.quotes-section .quotes-text,
.quotes-section .quotes-subtext {
    opacity: 0;
    transform: translateY(20px);
    transition: all 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* --- State Saat Reveal (Visible) --- */
.quotes-section.reveal .quotes-title {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.2s;
}

.quotes-section.reveal .quotes-line {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.4s;
    width: 60px;
    /* Garis sedikit memanjang saat muncul */
}

.quotes-section.reveal .quotes-text {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.6s;
}

.quotes-section.reveal .quotes-subtext {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.8s;
}

/* Dekorasi Tambahan (Opsional) */
.quotes-decor {
    position: absolute;
    width: 100px;
    height: 100px;
    opacity: 0.1;
    border: 1px solid #1a2a4e;
    border-radius: 50%;
    z-index: 0;
}

.quotes-decor.top {
    top: -20px;
    left: -20px;
}

.quotes-decor.bottom {
    bottom: -20px;
    right: -20px;
}

/* --- State Awal (Elemen Tersembunyi) --- */

/* Judul muncul dengan sedikit scale */
.quotes-section .quotes-title {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
    transition: all 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Garis pembatas melebar dari tengah */
.quotes-section .quotes-line {
    opacity: 0;
    width: 0;
    /* Mulai dari lebar 0 */
    transition: all 1s ease-out 0.4s;
}

/* Teks kutipan muncul dengan efek blur halus */
.quotes-section .quotes-text {
    opacity: 0;
    filter: blur(5px);
    transform: translateY(30px);
    transition: all 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) 0.6s;
}

/* Keterangan ayat/sumber muncul terakhir */
.quotes-section .quotes-subtext {
    opacity: 0;
    transform: translateY(10px);
    transition: all 1s ease-out 1s;
}

/* --- State Saat Reveal (Pemicu IntersectionObserver) --- */

.quotes-section.reveal .quotes-title {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.quotes-section.reveal .quotes-line {
    opacity: 1;
    width: 60px;
    /* Melebar ke ukuran tujuan */
}

.quotes-section.reveal .quotes-text {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
}

.quotes-section.reveal .quotes-subtext {
    opacity: 1;
    transform: translateY(0);
}

/* couple/ */
/* --- Couple Section Layout --- */
/* =========================================
   COUPLE SECTION - FULL STYLES
   ========================================= */

/* --- Penataan Struktur People Section --- */
.people-section {
    position: relative;
    min-height: 60vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    color: #3b3b3b;
    box-sizing: border-box;
    padding: 60px 20px;
    background-color: #030a16;
}

.people-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/bg-seminar.webp');
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.people-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(to bottom, rgba(3, 10, 22, 0.95) 0%, rgba(3, 10, 22, 0.8) 50%, rgba(3, 10, 22, 0.98) 100%); */
    z-index: 1;
}

.people-content {
    position: relative;
    z-index: 2;
    max-width: 450px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* --- Elemen Judul --- */
.people-label {
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: #4da6ff;
    font-weight: 700;
    margin-bottom: 5px;
}

.people-title {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 1px;
    margin: 0 0 20px 0;
}

.people-divider {
    width: 40px;
    height: 3px;
    background: #d96b20;
    margin-bottom: 35px;
    border-radius: 2px;
}

/* --- Cyber Frame Foto Profil --- */
.profile-frame {
    position: relative;
    width: 220px;
    height: 220px;
    margin-bottom: 30px;
    border-radius: 50%;
    padding: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-sizing: border-box;
}

/* Efek lingkaran menyala di belakang foto */
.profile-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #d96b20, #4da6ff);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.6;
    filter: blur(8px);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #030a16;
    background-color: rgba(255, 255, 255, 0.05);
}

/* Aksen Dekorasi Sudut Teknis (Sci-Fi / Digital) */
.corner-spec {
    position: absolute;
    width: 15px;
    height: 15px;
    border: 2px solid #d96b20;
    z-index: 3;
}

.corner-spec.tl {
    top: -5px;
    left: -5px;
    border-right: none;
    border-bottom: none;
}

.corner-spec.br {
    bottom: -5px;
    right: -5px;
    border-left: none;
    border-top: none;
}

/* --- Detail & Deskripsi Penulis --- */
.author-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0 0 5px 0;
    letter-spacing: 0.5px;
}

.author-title {
    font-size: 0.85rem;
    color: #d96b20;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin: 0 0 15px 0;
}

.author-bio {
    font-size: 0.85rem;
    color: #818181;
    line-height: 1.6;
    margin: 0;
    font-weight: 400;
}


/* ==========================================================================
   SISTEM ANIMASI ON-SCROLL (Menggunakan trigger .reveal dari IntersectionObserver)
   ========================================================================== */

/* State Awal sebelum reveal */
.people-section .anim-fade-up {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1),
        transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.people-section .anim-scale-up {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.9s cubic-bezier(0.34, 1.56, 0.64, 1),
        transform 0.9s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* State Akhir saat class .reveal aktif */
.people-section.reveal .anim-fade-up,
.people-section.reveal .anim-scale-up {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Penundaan transisi (Staggered Delay) */
.people-section.reveal .people-label {
    transition-delay: 0.1s;
}

.people-section.reveal .people-title {
    transition-delay: 0.2s;
}

.people-section.reveal .people-divider {
    transition-delay: 0.3s;
}

.people-section.reveal .profile-frame {
    transition-delay: 0.4s;
}

.people-section.reveal .author-details {
    transition-delay: 0.6s;
}

/* save-date/ */
/* --- Save The Date Layout --- */
/* --- Penataan Struktur Save The Date --- */
/* --- Penataan Struktur Save The Date --- */
.save-the-date {
    position: relative;
    min-height: 60vh;
    /* Sedikit lebih pendek karena fokus pada modul hitung mundur */
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    color: #3b3b3b;
    box-sizing: border-box;
    padding: 60px 20px;
    background-color: #030a16;
}

.countdown-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/bg-seminar.webp');
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.countdown-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgb(0 0 0 / 81%) 0%, rgb(0 0 0 / 43%) 100%), url('../images/bg-seminar.webp') no-repeat center center;
    z-index: 1;
}

.countdown-content {
    position: relative;
    z-index: 2;
    max-width: 450px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* --- Elemen Judul --- */
.countdown-label {
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: #4da6ff;
    font-weight: 700;
    margin-bottom: 5px;
}

.countdown-title {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 1px;
    color: #fff;
    margin: 0 0 20px 0;
}

.countdown-divider {
    width: 40px;
    height: 3px;
    background: #d96b20;
    margin-bottom: 40px;
    border-radius: 2px;
}

/* --- Grid Hitung Mundur Modern --- */
.countdown-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 15px 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

/* Aksen efek kilau tipis di bagian atas kotak */
.countdown-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(217, 107, 32, 0.5), transparent);
}

.countdown-number {
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    font-variant-numeric: tabular-nums;
    /* Mencegah angka melompat saat berubah */
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.countdown-unit {
    font-size: 0.65rem;
    font-weight: 700;
    color: #d96b20;
    letter-spacing: 1px;
    margin-top: 8px;
}

/* --- Style Komponen Tambahan RSVP Baru --- */
.instruction-text {
    font-size: 0.85rem;
    line-height: 1.5;
    background: #ffffff;

    border-radius: 20px;
    font-weight: bold;
    padding: 20px;
    color: #2d2d2d;
    margin: 40px 40px 20px;
    text-align: left;
}

.rsvp-main-btn {
    padding: 14px 60px;
    border-radius: 30px;
    border: none;
    background: #d96b20;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(217, 107, 32, 0.4);
    transition: all 0.3s ease;
}

.rsvp-main-btn:hover {
    transform: scale(1.05);
    background: #f07b27;
    box-shadow: 0 6px 20px rgba(217, 107, 32, 0.6);
}

/* --- Desain Pop-Up Modal Box Modern --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgb(3 10 22 / 54%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    padding: 20px;
    box-sizing: border-box;
}

/* Kelas trigger aktif untuk JavaScript modal toggle */
.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: rgba(13, 22, 41, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    max-width: 400px;
    width: 100%;
    padding: 30px 25px;
    box-sizing: border-box;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: scale(0.85) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 15px;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
}

.close-modal {
    background: none;
    border: none;
    color: #a3a3a3;
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
}

.close-modal:hover {
    color: #ffffff;
}

/* --- Style Form Inner Modal --- */
.form-group {
    text-align: left;
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: #4da6ff;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #d96b20;
    background: rgba(255, 255, 255, 0.07);
}

.form-group select option {
    background: #0d1629;
    /* Menjaga option box tetap bertema gelap di mobile */
    color: #ffffff;
}

.submit-btn {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: none;
    background: #d96b20;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    margin-top: 10px;
    box-shadow: 0 4px 15px rgba(217, 107, 32, 0.3);
    transition: background 0.2s ease;
}

.submit-btn:hover {
    background: #f07b27;
}

/* ==========================================================================
   SISTEM REVEAL DELAY ANIMATION (Tambahan Untuk RSVP)
   ========================================================================== */
.save-the-date.reveal .instruction-text {
    transition-delay: 0.55s;
}

.save-the-date.reveal .rsvp-main-btn {
    transition-delay: 0.65s;
}

/* ==========================================================================
   SISTEM ANIMASI ON-SCROLL (.reveal)
   ========================================================================== */

.save-the-date .anim-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1),
        transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.save-the-date .anim-scale-up {
    opacity: 0;
    transform: scale(0.8) translateY(10px);
    transition: opacity 0.8s cubic-bezier(0.34, 1.56, 0.64, 1),
        transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Aktif ketika class .reveal diberikan oleh Observer */
.save-the-date.reveal .anim-fade-up,
.save-the-date.reveal .anim-scale-up {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.save-the-date.reveal .countdown-label {
    transition-delay: 0.1s;
}

.save-the-date.reveal .countdown-title {
    transition-delay: 0.2s;
}

.save-the-date.reveal .countdown-divider {
    transition-delay: 0.3s;
}

.save-the-date.reveal .countdown-grid {
    transition-delay: 0.4s;
}



/* --- Penataan Struktur Closing Section --- */
.closing-section {
    position: relative;
    min-height: 90vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    color: #ffffff;
    box-sizing: border-box;
    padding: 80px 20px;
    background-color: #030a16;
}

.closing-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgb(0 0 0 / 81%) 0%, rgb(0 0 0 / 43%) 100%), url('../images/bg-seminar.webp') no-repeat center center;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.closing-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradasi bawah dibuat sangat gelap pekat sebagai penutup halaman website */
    z-index: 1;
}

.closing-content {
    position: relative;
    z-index: 2;
    max-width: 420px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* --- Ikon Penutup Futuristik --- */
/* --- Modifikasi Ikon Penutup Menggunakan Gambar Buku --- */
.closing-icon {
    height: 140px;
    /* Ukuran proporsional untuk bagian penutup */
    width: auto;
    /* Menjaga aspek rasio buku tetap sempurna */
    object-fit: contain;
    margin-bottom: 30px;
    /* Memberikan efek bayangan realistik di belakang buku, menggantikan background bulat sebelumnya */
    filter: drop-shadow(0px 8px 20px rgba(0, 0, 0, 0.5)) drop-shadow(0px 0px 10px rgba(217, 107, 32, 0.15));
}

/* --- Gaya Teks Pesan --- */
.closing-text {
    font-size: 0.9rem;
    color: #ffffff;
    line-height: 1.7;
    margin: 0 0 20px 0;
    font-weight: 400;
}

.closing-salutation {
    font-size: 0.95rem;
    font-weight: 700;
    color: #4da6ff;
    letter-spacing: 0.5px;
    margin-bottom: 35px;
}

.closing-divider {
    width: 35px;
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
    margin-bottom: 35px;
}

/* --- Bagian Kaki Undangan (Hormat Kami) --- */
.closing-footer .footer-note {
    font-size: 0.8rem;
    color: #a3a3a3;
    margin: 0 0 8px 0;
    letter-spacing: 1px;
}

.closing-footer .footer-organizer {
    font-size: 1.3rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 4px 0;
    letter-spacing: 0.5px;
}

.closing-footer .footer-event {
    font-size: 0.75rem;
    color: #d96b20;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ==========================================================================
   SISTEM ANIMASI ON-SCROLL VIA .reveal
   ========================================================================== */

.closing-section .anim-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1),
        transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.closing-section .anim-scale-up {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.8s cubic-bezier(0.34, 1.56, 0.64, 1),
        transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Triger aktif saat class .reveal disuntikkan oleh observer */
.closing-section.reveal .anim-fade-up,
.closing-section.reveal .anim-scale-up {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Sinkronisasi urutan delay kemunculan */
.closing-section.reveal .closing-icon {
    transition-delay: 0.1s;
}

.closing-section.reveal .closing-text {
    transition-delay: 0.2s;
}

.closing-section.reveal .closing-salutation {
    transition-delay: 0.3s;
}

.closing-section.reveal .closing-divider {
    transition-delay: 0.4s;
}

.closing-section.reveal .closing-footer {
    transition-delay: 0.5s;
}

.main-footer {
    padding: 30px;
    background: #fcfdfd;
    text-align: center;
    font-size: 0.8rem;
    color: #555555;
    border-top: 1px solid #f1f1f1;
}

.fa-heart {
    color: #680000;
}