/* ================================================
   DESIGN TOKENS (ROMANTIC PAPER)
   ================================================ */
:root {
    --bg-wall: #121010;
    --paper-ivory: #f9f7f1;
    --paper-grain: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.4'/%3E%3C/svg%3E");

    --gold-foil: #d4af37;
    --rose-gold: #b76e79;
    --shadow-paper: 0 2px 8px rgba(0, 0, 0, 0.2), 0 10px 24px rgba(0, 0, 0, 0.3);

    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;

    --card-width: 85vw;
    --card-max-width: 380px;
}

/* ================================================
   RESET
   ================================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100vh;
    background-color: var(--bg-wall);
    color: #1a1614;
    font-family: var(--font-sans);
    overflow-x: hidden;
    scroll-behavior: smooth;
    transition: background-color 1.5s ease;
}

body.in-love {
    background-color: #3e0e0e;
    background-image: radial-gradient(circle at center, #5e1e1e 0%, #1a0505 100%);
}

/* ================================================
   ATMOSPHERE
   ================================================ */
.grain-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.05;
    background-image: var(--paper-grain);
}

.gallery {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 10vh 0 20vh 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4rem;
}

/* ================================================
   THE CARD
   ================================================ */
.card {
    position: relative;
    width: var(--card-width);
    max-width: var(--card-max-width);
    background-color: var(--paper-ivory);
    padding: 1rem 1rem 3.5rem 1rem;
    box-shadow: var(--shadow-paper);
    transform-style: preserve-3d;
    will-change: transform;
    background-image: var(--paper-grain);
    background-blend-mode: multiply;
    transition: transform 0.1s linear;
}

.card::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.4) 45%, rgba(255, 255, 255, 0.0) 60%);
    mix-blend-mode: soft-light;
    opacity: var(--light-opacity, 0);
    background-size: 200% 200%;
    background-position: var(--light-pos, 0%) 0%;
    transition: opacity 0.2s ease;
}

.card:nth-child(odd) {
    margin-right: 2rem;
    transform: rotate(-2deg);
}

.card:nth-child(even) {
    margin-left: 2rem;
    transform: rotate(2deg);
}

.card-media {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    display: block;
    filter: contrast(1.05) sepia(0.1);
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.1);
}

.tape {
    position: absolute;
    top: -15px;
    left: 50%;
    width: 110px;
    height: 32px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(1px);
    transform: translate(-50%, 0) rotate(-1deg);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    mask-image: url("data:image/svg+xml,%3Csvg preserveAspectRatio='none' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0 L100 0 L96 100 L4 100 Z' fill='black'/%3E%3C/svg%3E");
    z-index: 20;
}

.card:nth-child(even) .tape {
    transform: translate(-50%, 0) rotate(1.5deg);
}

.caption {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: #3e3224;
    margin-top: 1.5rem;
    text-align: center;
    font-style: italic;
    opacity: 0.9;
    min-height: 3em;
    /* Reserve space for multiline changes */
    transition: opacity 0.5s ease;
}

/* ================================================
   THE PROPOSAL
   ================================================ */
.proposal-section {
    width: 100%;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--paper-ivory);
    position: relative;
    perspective: 1000px;
}

.proposal-card {
    background: #1a0505;
    border: 1px solid #3e0e0e;
    padding: 4rem 2rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
    position: relative;
    overflow: hidden;
}

.proposal-card::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 1px solid var(--gold-foil);
    opacity: 0.3;
    pointer-events: none;
}

.proposal-h {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--gold-foil);
    margin-bottom: 2rem;
    line-height: 1.2;
    transition: opacity 0.5s ease;
}

.btn-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-romantic {
    background: transparent;
    color: var(--gold-foil);
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 1.2rem 3rem;
    border: 1px solid var(--gold-foil);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    min-width: 160px;
    /* Prevent layout shift on text change */
}

.btn-romantic::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gold-foil);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: -1;
}

.btn-romantic:hover {
    color: #1a0505;
    border-color: transparent;
}

.btn-romantic:hover::after {
    transform: translateY(0);
}

/* Trick Button (The "No" Button) */
.btn-trick {
    border-color: #888;
    color: #888;
}

.btn-trick:hover {
    background: #333;
    color: #fff;
}

/* When tricked, it looks like yes */
.btn-trick.is-yes {
    border-color: var(--gold-foil);
    color: var(--gold-foil);
}

.btn-trick.is-yes:hover {
    color: #1a0505;
    background: transparent;
}

.btn-trick.is-yes::after {
    background: var(--gold-foil);
}

/* Fading text utility */
.fade-out {
    opacity: 0 !important;
}

/* Success State Text */
.success-msg {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
    z-index: 9999;
}

.success-msg h1 {
    font-family: var(--font-serif);
    font-size: 4rem;
    color: var(--gold-foil);
    text-shadow: 0 0 30px rgba(212, 175, 55, 0.5);
    transform: scale(0.8);
    transition: transform 2s cubic-bezier(0.19, 1, 0.22, 1);
    text-align: center;
    line-height: 1.2;
}

.in-love .success-msg {
    opacity: 1;
    pointer-events: auto;
}

.in-love .success-msg h1 {
    transform: scale(1);
}

#confetti-canvas {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 8000;
}

.loader {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 10000;
    display: grid;
    place-items: center;
    color: var(--gold-foil);
    transition: opacity 0.6s;
}

.loader.done {
    opacity: 0;
    pointer-events: none;
}