/* style.css — Halaman Ucapan Ulang Tahun */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600;700&family=Playfair+Display:ital,wght@0,500;0,700;1,400&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* --- DESIGN SYSTEM & CONSTANTS --- */
:root {
    --bg-cream: #FAF6F0;
    --brand-wine: #6B2D3B;
    --brand-rose: #C97D8C;
    --brand-blush: #E8B4BC;
    --brand-sage: #9AB09E;
    --brand-gold: #DFB15B;
    --text-dark: #2C2224;
    --font-heading: 'Playfair Display', serif;
    --font-script: 'Caveat', cursive;
    --font-sans: 'Plus Jakarta Sans', sans-serif;
}

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

html, body {
    background-color: var(--bg-cream);
    color: var(--text-dark);
    font-family: var(--font-sans);
    overflow-x: hidden;
    min-height: 100vh;
}

/* --- AMBIENT DECORATIVE SHAPES --- */
.canva-bg-shapes {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.shape {
    position: absolute;
    opacity: 0.45;
    mix-blend-mode: multiply;
}

.circle-1 {
    top: -10%;
    right: -10%;
    width: 45vw;
    height: 45vw;
    border-radius: 50%;
    background: radial-gradient(circle, #F5DFD6 0%, rgba(245, 223, 214, 0) 70%);
    filter: blur(40px);
}

.circle-2 {
    bottom: -10%;
    left: -15%;
    width: 55vw;
    height: 55vw;
    border-radius: 50%;
    background: radial-gradient(circle, #E1E7DB 0%, rgba(225, 231, 219, 0) 70%);
    filter: blur(50px);
    opacity: 0.35;
}

/* --- PARTICLE ANIMATION: FALLING PETALS --- */
#petal-field {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2;
    overflow: hidden;
}

.petal {
    position: absolute;
    top: -5%;
    font-size: var(--petal-size, 16px);
    user-select: none;
    pointer-events: none;
    animation: fall linear forwards;
}

@keyframes fall {
    to {
        transform: translateY(110vh) translateX(var(--drift, 0px)) rotate(var(--spin, 180deg));
        opacity: 0;
    }
}

/* --- PARTICLE ANIMATION: FLOATING HEARTS --- */
#hearts-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 150;
    overflow: hidden;
}

.heart-pop {
    position: absolute;
    bottom: -10%;
    font-size: var(--size, 20px);
    opacity: 0.8;
    animation: floatUp 4s ease-in forwards;
}

@keyframes floatUp {
    0% { transform: translateY(0) translateX(0) scale(0.5); opacity: 0; }
    15% { opacity: 0.8; }
    100% { transform: translateY(-110vh) translateX(var(--drift, 50px)) scale(1.2) rotate(var(--rot, 20deg)); opacity: 0; }
}

/* --- ENVELOPE OPENER OVERLAY --- */
#envelope-screen {
    position: fixed;
    inset: 0;
    z-index: 300;
    background: radial-gradient(ellipse at 50% 40%, #FDF6F0, #E8D8CC 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    overflow: hidden;
}

#envelope-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.opener-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.8rem;
    text-align: center;
}

.envelope-prompt {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    color: var(--brand-wine);
    opacity: 0;
    animation: fadeSlideIn 0.8s 0.3s ease forwards;
}

.envelope-hint {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brand-rose);
    opacity: 0;
    animation: pulse 2s 1.2s infinite, fadeSlideIn 0.6s 1s ease forwards;
}

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

#envelope-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2rem;
    -webkit-tap-highlight-color: transparent;
}

/* Container amplop dengan perspective 3D */
.envelope-wrap {
    perspective: 1200px;
    position: relative;
    width: 280px;
    height: 180px;
    animation: fadeSlideIn 0.7s 0.6s ease forwards;
    opacity: 0;
}

/* Partikel sparkle (titik cahaya melayang) */
.envelope-sparkle {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(196, 153, 120, 0.9), transparent 70%);
    animation: sparkleFloat 3s ease-in-out infinite;
    pointer-events: none;
    z-index: 10;
}

.envelope-sparkle.s1 { top: -15px; left: 20%; animation-delay: 0s; width: 5px; height: 5px; }
.envelope-sparkle.s2 { top: -8px; right: 15%; animation-delay: 0.5s; width: 4px; height: 4px; }
.envelope-sparkle.s3 { top: 30%; left: -12px; animation-delay: 1s; width: 5px; height: 5px; }
.envelope-sparkle.s4 { top: 40%; right: -10px; animation-delay: 1.5s; width: 4px; height: 4px; }
.envelope-sparkle.s5 { bottom: -10px; left: 35%; animation-delay: 0.7s; width: 3px; height: 3px; }
.envelope-sparkle.s6 { bottom: -5px; right: 30%; animation-delay: 1.2s; width: 5px; height: 5px; }

@keyframes sparkleFloat {
    0%, 100% { opacity: 0.3; transform: translateY(0) scale(1); }
    50% { opacity: 1; transform: translateY(-8px) scale(1.4); }
}

/* Amplop utama */
.envelope {
    width: 280px;
    height: 180px;
    position: relative;
    transform-style: preserve-3d;
    animation: envelopeIdle 3s ease-in-out infinite;
}

@keyframes envelopeIdle {
    0%, 100% { transform: rotate(-1deg) translateY(0); }
    50% { transform: rotate(1deg) translateY(-5px); }
}

/* Shadow realistis di bawah amplop */
.envelope-shadow {
    position: absolute;
    bottom: -18px;
    left: 10%;
    width: 80%;
    height: 20px;
    background: radial-gradient(ellipse, rgba(120, 70, 50, 0.18), transparent 70%);
    border-radius: 50%;
    filter: blur(6px);
    transition: all 0.8s ease;
}

/* Bagian belakang amplop */
.envelope-back {
    position: absolute;
    inset: 0;
    background: linear-gradient(165deg, #D4A98C 0%, #C4896C 40%, #B07A63 100%);
    border-radius: 10px;
    box-shadow:
        0 8px 30px rgba(107, 45, 45, 0.2),
        0 2px 8px rgba(107, 45, 45, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    overflow: hidden;
}

/* Inner lining (pola diagonal terlihat saat flap dibuka) */
.envelope-lining {
    position: absolute;
    inset: 4px;
    border-radius: 7px;
    background:
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 6px,
            rgba(196, 153, 120, 0.15) 6px,
            rgba(196, 153, 120, 0.15) 7px
        );
    opacity: 0;
    transition: opacity 0.6s 0.3s ease;
}

/* Surat yang peek dari atas amplop */
.envelope-letter {
    position: absolute;
    left: 8%;
    right: 8%;
    top: 8%;
    height: 82%;
    background: linear-gradient(180deg, #FFFDF9, #FFF8F0);
    border-radius: 6px;
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.08),
        inset 0 0 0 1px rgba(196, 153, 120, 0.15);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 14px;
    transform: translateY(0);
    transition: transform 1s cubic-bezier(0.34, 1.56, 0.64, 1) 0.15s;
    z-index: 1;
}

.envelope-letter-text {
    font-family: var(--font-script);
    color: var(--brand-wine);
    font-size: 1.2rem;
    font-weight: 700;
    opacity: 0.9;
}

/* Flap penutup atas amplop */
.envelope-flap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 54%;
    background: linear-gradient(170deg, #C4896C 0%, #D4A98C 60%, #C4896C 100%);
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    transform-origin: top center;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 3;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Inner side flap (terlihat saat flap terbuka/rotasi) */
.envelope-flap-inner {
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 5px,
            rgba(255, 255, 255, 0.12) 5px,
            rgba(255, 255, 255, 0.12) 6px
        );
    clip-path: polygon(0 0, 100% 0, 50% 100%);
}

/* Wax Seal (segel lilin premium) */
.wax-seal {
    position: absolute;
    top: 38%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: radial-gradient(circle at 38% 32%, #E8A0A0, var(--brand-wine) 70%, #6B2D3B);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.9);
    box-shadow:
        0 3px 10px rgba(107, 45, 59, 0.35),
        0 0 20px rgba(196, 120, 130, 0.2),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15),
        inset 0 1px 2px rgba(255, 255, 255, 0.2);
    z-index: 4;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.wax-seal svg {
    width: 18px;
    height: 18px;
    filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.15));
}

/* --- STATE: Amplop Terbuka --- */
.envelope.open {
    animation: none;
}

.envelope.open .envelope-flap {
    transform: rotateX(180deg);
}

.envelope.open .envelope-letter {
    transform: translateY(-135%);
}

.envelope.open .envelope-lining {
    opacity: 1;
}

.envelope.open .wax-seal {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.3) rotate(20deg);
}

.envelope.open .envelope-shadow {
    bottom: -22px;
    opacity: 0.6;
    filter: blur(10px);
}

/* --- MAIN INTERACTION SCREEN LAYOUT --- */
main {
    position: relative;
    z-index: 10;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

main.fade-out-chat {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
    padding: 0;
}

.chat-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    max-width: 1100px;
    width: 100%;
    flex-wrap: wrap;
}

/* --- PHONE FRAME CONTAINER (SIMULATION) --- */
.phone-frame {
    width: 320px;
    height: 560px;
    background: #111111;
    border-radius: 36px;
    padding: 8px;
    box-shadow: 0 25px 50px -12px rgba(107, 45, 59, 0.25);
    position: relative;
    border: 3px solid rgba(255, 255, 255, 0.1);
}

.phone-notch {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 110px;
    height: 18px;
    background: #111111;
    border-radius: 0 0 12px 12px;
    z-index: 50;
}

.chat-container {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 28px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: #FAF6F0;
    padding: 24px 16px 12px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    border-bottom: 1px solid rgba(107, 45, 59, 0.08);
}

.chat-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--brand-wine);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chat-avatar-fallback {
    display: none;
    font-size: 1.1rem;
}

.chat-meta {
    display: flex;
    flex-direction: column;
}

.chat-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--brand-wine);
}

.chat-status {
    font-size: 0.7rem;
    color: var(--brand-sage);
    font-weight: 500;
}

.chat-box {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    background: #FCFBF9;
}

.chat-box::-webkit-scrollbar { width: 4px; }
.chat-box::-webkit-scrollbar-thumb { background: var(--brand-blush); border-radius: 2px; }

.chat-bubble {
    max-width: 80%;
    padding: 0.75rem 0.9rem;
    border-radius: 16px;
    font-size: 0.85rem;
    line-height: 1.45;
    word-wrap: break-word;
    font-weight: 500;
}

.chat-bubble.incoming {
    background: #FAF6F0;
    color: var(--text-dark);
    align-self: flex-start;
    border-top-left-radius: 2px;
}

.chat-bubble.outgoing {
    background: var(--brand-wine);
    color: #ffffff;
    align-self: flex-end;
    border-top-right-radius: 2px;
}

.chat-input-bar {
    padding: 12px;
    background: #FAF6F0;
    display: flex;
    justify-content: center;
}

.chat-reply-placeholder {
    width: 100%;
    padding: 0.55rem 1rem;
    border-radius: 20px;
    background: #EDEBE8;
    color: #A8A09A;
    font-family: var(--font-sans);
    font-size: 0.72rem;
    font-weight: 500;
    text-align: center;
    user-select: none;
    pointer-events: none;
}

.chat-reply-button {
    background: var(--brand-wine);
    color: #ffffff;
    border: none;
    padding: 0.55rem 1.4rem;
    border-radius: 20px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.78rem;
    cursor: pointer;
    box-shadow: 0 0 0 0 rgba(107, 45, 59, 0.4);
    animation: replyPulse 1.8s infinite;
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.chat-reply-button:hover {
    background-color: var(--brand-rose);
    transform: scale(1.03);
    animation: none; /* Berhenti berdetak saat diarahkan kursor */
    box-shadow: 0 4px 12px rgba(107, 45, 59, 0.2);
}

@keyframes replyPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(107, 45, 59, 0.5);
    }
    70% {
        transform: scale(1.02);
        box-shadow: 0 0 0 8px rgba(107, 45, 59, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(107, 45, 59, 0);
    }
}

/* --- INTERACTIVE CAKE SURPRISE --- */
#cake-surprise {
    text-align: center;
    max-width: 420px;
    width: 100%;
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
}

#cake-surprise.cake-hidden {
    opacity: 0;
    transform: scale(0.85) translateY(20px);
    pointer-events: none;
}

.cake-decorations {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.bubble-wish {
    background: #ffffff;
    border: 1px solid var(--brand-blush);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--brand-wine);
    box-shadow: 0 4px 10px rgba(107, 45, 59, 0.05);
    animation: floating 3s ease-in-out infinite;
}

.wish-2 {
    animation-delay: 1.5s;
    border-color: var(--brand-gold);
    color: var(--brand-rose);
}

@keyframes floating {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.cake-container {
    width: 160px;
    height: 130px;
    margin-bottom: 1.5rem;
    position: relative;
}

.cake-body {
    width: 100%;
    height: 80px;
    background: var(--brand-rose);
    border-radius: 12px 12px 0 0;
    position: absolute;
    bottom: 0;
    box-shadow: 0 10px 20px rgba(107, 45, 59, 0.15);
}

.cake-cream {
    width: 100%;
    height: 18px;
    background: #ffffff;
    border-radius: 12px 12px 0 0;
    position: absolute;
    bottom: 80px;
    border-bottom: 3px dashed var(--brand-gold);
}

.candle {
    width: 10px;
    height: 40px;
    background: linear-gradient(to top, #ffffff, var(--brand-gold));
    position: absolute;
    bottom: 95px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.flame {
    width: 14px;
    height: 25px;
    background: radial-gradient(circle at center, #ffdd66 0%, #ff8833 60%, var(--brand-wine) 100%);
    border-radius: 50% 50% 20% 20%;
    position: absolute;
    top: -22px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 15px #ffaa44;
    animation: flicker 0.15s ease-in infinite alternate;
    cursor: pointer;
}

.flame.blown { display: none; }

@keyframes flicker {
    0% { transform: translateX(-50%) rotate(-2deg) scale(0.95); }
    100% { transform: translateX(-50%) rotate(2deg) scale(1.05); }
}

.birthday-heading {
    font-size: clamp(2rem, 5vw, 2.8rem);
    color: var(--brand-wine);
    margin-bottom: 0.5rem;
}

#cake-instruction {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--brand-gold);
}

/* --- REVEALED PORTION: WEBSITE CONTAINER --- */
#birthday-main-page {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 10;
    transition: opacity 1.2s ease, transform 1.2s ease;
}

#birthday-main-page.main-page-hidden {
    opacity: 0;
    transform: translateY(40px);
    pointer-events: none;
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
    padding: 0;
}

/* --- HERO BANNER --- */
#hero-main {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1.1rem;
}

#hero-main h1 {
    font-family: var(--font-script);
    font-size: clamp(3.2rem, 11vw, 6.5rem);
    color: var(--brand-wine);
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.eyebrow {
    font-family: var(--font-sans);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--brand-rose);
    font-weight: 600;
}

.hero-sub {
    font-family: var(--font-heading);
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    font-style: italic;
    color: var(--brand-wine);
    max-width: 460px;
    opacity: 0.75;
    line-height: 1.7;
}

.scroll-cue {
    margin-top: 3.5rem;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--brand-rose);
    animation: bob 2.2s ease-in-out infinite;
}

@keyframes bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* --- EDITORIAL LETTER SECTION --- */
#letter-main {
    padding: 6rem 1.5rem;
    margin: 4rem 0;
    height: auto;
}

.letter-wrapper {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    height: auto;
}

.letter-wrapper::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, transparent, var(--brand-blush) 20%, var(--brand-rose) 50%, var(--brand-blush) 80%, transparent);
    border-radius: 2px;
}

.letter-dateline {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.letter-dateline::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--brand-blush), transparent);
}

.letter-dateline span {
    font-family: var(--font-sans);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--brand-rose);
    white-space: nowrap;
}

.letter-greeting {
    font-family: var(--font-script);
    font-size: clamp(2.2rem, 6vw, 3.2rem);
    color: var(--brand-wine);
    line-height: 1.2;
    margin-bottom: 2rem;
}

.letter-body {
    display: flex;
    flex-direction: column;
    gap: 1.3rem;
    margin-bottom: 3rem;
    height: auto;
}

.letter-body p {
    font-family: var(--font-sans);
    font-size: 1.08rem;
    line-height: 1.95;
    color: #3A2E2A;
    font-weight: 400;
}

.letter-body p:first-child::first-letter {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--brand-wine);
    float: left;
    line-height: 0.8;
    margin-right: 0.12em;
    margin-top: 0.08em;
}

.letter-sign-block {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(107, 45, 59, 0.1);
}

.letter-sign-label {
    font-size: 0.68rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--brand-rose);
    font-weight: 600;
}

.letter-sign {
    font-family: var(--font-script);
    font-size: 2.8rem;
    color: var(--brand-wine);
    line-height: 1;
}

/* --- ASYMMETRICAL CHROMATIC BENTO GRID --- */
#gallery-main {
    padding: 6rem 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    color: var(--brand-wine);
    text-align: center;
    margin-bottom: 0.5rem;
}

.gallery-subtitle {
    font-size: 0.88rem;
    color: var(--brand-rose);
    text-align: center;
    letter-spacing: 0.08em;
    margin-bottom: 3.5rem;
}

.wish-cards-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 240px;
    gap: 1.8rem;
}

/* Bento Grid Spacing definitions */
.wish-text-card:nth-child(1) { grid-column: span 3; grid-row: span 1; }
.wish-text-card:nth-child(2) { grid-column: span 3; grid-row: span 1; }
.wish-text-card:nth-child(3) { grid-column: span 2; grid-row: span 1; }
.wish-text-card:nth-child(4) { grid-column: span 4; grid-row: span 1; }
.wish-text-card:nth-child(5) { grid-column: span 3; grid-row: span 1; }
.wish-text-card:nth-child(6) { grid-column: span 3; grid-row: span 1; }

.wish-text-card {
    position: relative;
    border-radius: 30px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    border: 1px solid rgba(255, 255, 255, 0.4);
    overflow: hidden;
    backdrop-filter: blur(20px) saturate(110%);
    -webkit-backdrop-filter: blur(20px) saturate(110%);
}

.wish-text-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(107, 45, 59, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
}

/* Color palettes */
.wish-text-card.color-blush {
    background: linear-gradient(135deg, rgba(253, 237, 240, 0.75) 0%, rgba(244, 201, 210, 0.5) 100%);
}
.wish-text-card.color-sage {
    background: linear-gradient(135deg, rgba(235, 243, 238, 0.75) 0%, rgba(185, 196, 168, 0.45) 100%);
}
.wish-text-card.color-gold {
    background: linear-gradient(135deg, rgba(253, 247, 231, 0.75) 0%, rgba(223, 177, 91, 0.4) 100%);
}
.wish-text-card.color-rose {
    background: linear-gradient(135deg, rgba(251, 235, 238, 0.75) 0%, rgba(201, 125, 140, 0.45) 100%);
}

.wish-text-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.3) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 0;
}
.wish-text-card:hover::after {
    opacity: 1;
}

.card-number {
    font-family: var(--font-heading);
    font-size: 5.5rem;
    font-weight: 700;
    position: absolute;
    bottom: -1rem;
    right: 2rem;
    color: rgba(107, 45, 59, 0.04);
    line-height: 1;
    pointer-events: none;
    user-select: none;
    letter-spacing: -0.05em;
    z-index: 0;
    transition: all 0.5s ease;
}

.wish-text-card:hover .card-number {
    transform: translateY(-5px);
    color: rgba(107, 45, 59, 0.07);
}

.wish-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card-tag {
    font-family: var(--font-sans);
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--brand-wine);
    opacity: 0.6;
}

.wish-content h3 {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--brand-wine);
    letter-spacing: -0.02em;
}

.wish-content p {
    font-family: var(--font-sans);
    font-size: 0.92rem;
    line-height: 1.8;
    color: #3A2E2A;
    font-weight: 500;
    max-width: 90%;
}

.card-icon {
    position: absolute;
    top: 2.5rem;
    right: 2.5rem;
    font-size: 1.5rem;
    opacity: 0.45;
    z-index: 1;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.wish-text-card:hover .card-icon {
    transform: scale(1.25) rotate(-15deg);
    opacity: 0.9;
}

/* --- CLOSING SECTION --- */
#closing-main {
    text-align: center;
    padding: 6rem 1.5rem;
}

#closing-main h2 {
    font-family: var(--font-script);
    font-size: clamp(2.8rem, 8vw, 4.5rem);
    color: var(--brand-wine);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

#closing-main .body-text {
    font-family: var(--font-heading);
    font-style: italic;
    max-width: 480px;
    margin: 0 auto 1.5rem;
    font-size: 1.15rem;
    line-height: 1.85;
    color: var(--brand-wine);
    opacity: 0.8;
}

.closing-sign {
    font-family: var(--font-script);
    font-size: 1.9rem;
    color: var(--brand-wine);
    margin-top: 2.5rem;
    display: block;
}

/* --- FLOATING AUDIO CONTROLLER (SQUIRCLE ACTION BUTTON) --- */
#music-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 200;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(107, 45, 59, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(107, 45, 59, 0.12);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    color: var(--brand-wine);
}

.music-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.music-icon.icon-play {
    display: block;
}
.music-icon.icon-mute {
    display: none;
}

#music-toggle.playing {
    background: var(--brand-wine);
    border-color: var(--brand-wine);
    color: #ffffff;
    box-shadow: 0 10px 25px rgba(107, 45, 59, 0.25);
    animation: breathing 3s ease-in-out infinite alternate;
}

#music-toggle.playing .music-icon.icon-play {
    display: none;
}
#music-toggle.playing .music-icon.icon-mute {
    display: block;
}

#music-toggle:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 30px rgba(107, 45, 59, 0.18);
}

@keyframes breathing {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(-2px) scale(1.04); }
}

/* --- SCROLL-ANIMATION TRIGGERS --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* --- MEDIA QUERY QUIRKS & RESPONSIVENESS --- */
@media (max-width: 1024px) {
    .wish-cards-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: minmax(220px, auto);
        gap: 1.5rem;
    }
    .wish-text-card:nth-child(1),
    .wish-text-card:nth-child(2),
    .wish-text-card:nth-child(3),
    .wish-text-card:nth-child(4),
    .wish-text-card:nth-child(5),
    .wish-text-card:nth-child(6) {
        grid-column: span 1;
        grid-row: span 1;
    }
}

@media (max-width: 900px) {
    .letter-wrapper::before {
        display: none;
    }
}

@media (max-width: 768px) {
    main {
        padding: 1rem;
    }

    .chat-layout {
        flex-direction: column;
        gap: 3rem;
    }

    #cake-surprise {
        max-width: 320px;
    }

    .wish-cards-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
        gap: 1.2rem;
    }

    .wish-text-card {
        min-height: auto;
        padding: 2rem 1.5rem;
        border-radius: 20px;
    }

    .wish-content h3 {
        font-size: 1.35rem;
    }

    .wish-content p {
        font-size: 0.88rem;
        max-width: 100%;
    }

    .card-icon {
        top: 2rem;
        right: 1.5rem;
        font-size: 1.3rem;
    }

    .card-number {
        font-size: 4rem;
        bottom: -0.5rem;
        right: 1rem;
    }

    #letter-main {
        padding: 3rem 1rem;
    }

    #music-toggle {
        bottom: 1.5rem;
        right: 1.5rem;
    }

    /* Envelope scaling agar pas di layar kecil */
    .envelope-wrap {
        transform: scale(0.85);
        transform-origin: center center;
    }

    .envelope-prompt {
        font-size: clamp(1rem, 4vw, 1.4rem);
        padding: 0 1rem;
    }
}

/* Accessibility: Motion optimization */
@media (prefers-reduced-motion: reduce) {
    .shape, .petal, .heart-pop, .flame { animation: none !important; }
    .chat-reply-button, #envelope-btn { transition: none !important; }
    .reveal { opacity: 1; transform: none; }
    .envelope, .envelope-sparkle, .envelope-prompt, .envelope-hint, .envelope-wrap {
        animation: none !important;
        opacity: 1 !important;
    }
}