/* loves.day — Isometric Love Letter */

:root {
    --deep-plum: #2d1b3d;
    --darker-plum: #1a0e24;
    --mid-plum: #4a2d5e;
    --warm-gold: #d4b896;
    --bright-gold: #ffe8b0;
    --cream: #f5e6c8;
    --terracotta: #c4826e;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--darker-plum);
    color: var(--cream);
    font-family: 'Cormorant Garamond', serif;
    overflow-x: hidden;
}

.scene {
    width: 100%;
}

/* Vignettes - Full screen sections with ma (negative space) */
.vignette {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 4rem 2rem;
}

/* Hero Section */
.vignette--hero {
    background: radial-gradient(ellipse at center, var(--deep-plum) 0%, var(--darker-plum) 70%);
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-style: italic;
    font-size: clamp(2.2rem, 5vw, 4.8rem);
    letter-spacing: -0.01em;
    color: var(--bright-gold);
    margin-top: 3rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1.2s ease forwards 0.5s;
}

.hero-subtitle {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 200;
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--warm-gold);
    margin-top: 1rem;
    opacity: 0;
    animation: fadeUp 1.2s ease forwards 1s;
}

/* Isometric Heart */
.isometric-heart {
    position: relative;
    width: 200px;
    height: 200px;
    transform: rotateX(55deg) rotateZ(-45deg);
    transform-style: preserve-3d;
    animation: heartFloat 3s ease-in-out infinite;
}

.heart-cube {
    position: absolute;
    width: 80px;
    height: 80px;
    transform-style: preserve-3d;
}

.heart-cube--left {
    left: 20px;
    top: 30px;
}

.heart-cube--right {
    left: 80px;
    top: 30px;
}

.cube-face {
    position: absolute;
    width: 80px;
    height: 80px;
}

.cube-face--top {
    background: var(--terracotta);
    transform: translateZ(40px);
    opacity: 0.9;
}

.cube-face--left {
    background: var(--mid-plum);
    transform: rotateY(-90deg) translateZ(40px);
    border: 1px solid rgba(212, 184, 150, 0.1);
}

.cube-face--right {
    background: var(--deep-plum);
    transform: rotateX(90deg) translateZ(40px);
    border: 1px solid rgba(212, 184, 150, 0.1);
}

.heart-point {
    position: absolute;
    left: 50%;
    bottom: 10px;
    width: 0;
    height: 0;
    border-left: 40px solid transparent;
    border-right: 40px solid transparent;
    border-top: 60px solid var(--terracotta);
    transform: translateX(-50%);
    opacity: 0.85;
}

/* Envelope Section */
.vignette--envelope {
    background: linear-gradient(180deg, var(--darker-plum) 0%, var(--deep-plum) 50%, var(--darker-plum) 100%);
}

.isometric-envelope {
    position: relative;
    width: 280px;
    height: 200px;
    transform: rotateX(55deg) rotateZ(-45deg) scale(0.9);
    transform-style: preserve-3d;
}

.envelope-body {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.envelope-face--front {
    position: absolute;
    width: 280px;
    height: 160px;
    background: var(--warm-gold);
    bottom: 0;
    transform: translateZ(5px);
}

.envelope-face--side {
    position: absolute;
    width: 280px;
    height: 20px;
    background: var(--terracotta);
    bottom: 0;
    transform: rotateX(90deg) translateZ(10px);
}

.envelope-face--top {
    position: absolute;
    width: 20px;
    height: 160px;
    background: var(--cream);
    right: 0;
    bottom: 0;
    transform: rotateY(90deg) translateZ(130px);
}

.envelope-flap {
    position: absolute;
    top: 0;
    left: 50%;
    width: 0;
    height: 0;
    border-left: 140px solid transparent;
    border-right: 140px solid transparent;
    border-bottom: 80px solid var(--cream);
    transform: translateX(-50%) translateZ(6px);
    opacity: 0.9;
    transition: transform 0.8s ease;
}

.letter-peek {
    position: absolute;
    width: 240px;
    height: 40px;
    background: var(--bright-gold);
    top: 60px;
    left: 20px;
    transform: translateZ(7px);
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.isometric-envelope:hover .envelope-flap {
    transform: translateX(-50%) translateZ(6px) rotateX(-140deg);
}

.isometric-envelope:hover .letter-peek {
    opacity: 1;
    transform: translateZ(7px) translateY(-20px);
}

.envelope-text {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: clamp(1.4rem, 3vw, 2.4rem);
    color: var(--cream);
    text-align: center;
    margin-top: 4rem;
    line-height: 1.6;
}

.envelope-text span {
    color: var(--terracotta);
    font-weight: 700;
}

/* Staircase Section */
.vignette--staircase {
    background: var(--darker-plum);
}

.isometric-staircase {
    position: relative;
    width: 400px;
    height: 350px;
    transform: rotateX(55deg) rotateZ(-45deg) scale(0.8);
    transform-style: preserve-3d;
}

.stair {
    position: absolute;
    transform-style: preserve-3d;
    transition: transform 0.4s ease;
}

.stair::after {
    content: attr(data-word);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%) rotateZ(45deg) rotateX(-55deg);
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 300;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--bright-gold);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stair.visible::after {
    opacity: 1;
}

.stair:nth-child(1) { left: 0; top: 240px; }
.stair:nth-child(2) { left: 50px; top: 190px; }
.stair:nth-child(3) { left: 100px; top: 140px; }
.stair:nth-child(4) { left: 150px; top: 90px; }
.stair:nth-child(5) { left: 200px; top: 40px; }

.stair-top {
    position: absolute;
    width: 120px;
    height: 60px;
    background: var(--warm-gold);
    transform: translateZ(30px);
}

.stair-front {
    position: absolute;
    width: 120px;
    height: 30px;
    background: var(--terracotta);
    transform: rotateX(90deg) translateZ(-30px);
}

.stair-side {
    position: absolute;
    width: 30px;
    height: 60px;
    background: var(--mid-plum);
    transform: rotateY(90deg) translateZ(60px);
}

/* Garden Section */
.vignette--garden {
    background: radial-gradient(ellipse at center bottom, var(--deep-plum) 0%, var(--darker-plum) 80%);
}

.isometric-garden {
    position: relative;
    width: 300px;
    height: 250px;
    transform: rotateX(55deg) rotateZ(-45deg) scale(0.85);
    transform-style: preserve-3d;
}

.garden-ground {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 300px;
    height: 300px;
    background: var(--deep-plum);
    border: 1px solid var(--mid-plum);
    transform: translateZ(-5px);
}

.flower {
    position: absolute;
    width: 20px;
    height: 60px;
    transform-style: preserve-3d;
}

.flower::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 3px;
    height: 40px;
    background: var(--warm-gold);
    transform: translateX(-50%);
}

.flower::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 20px;
    height: 20px;
    background: var(--terracotta);
    border-radius: 50% 50% 50% 0;
    transform: translateX(-50%) rotateZ(-45deg);
}

.flower--1 { left: 80px; top: 80px; transform: translateZ(30px); }
.flower--2 { left: 150px; top: 120px; transform: translateZ(45px); }
.flower--3 { left: 120px; top: 160px; transform: translateZ(20px); }

.garden-text {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: clamp(1.6rem, 3.5vw, 2.8rem);
    color: var(--cream);
    text-align: center;
    margin-top: 4rem;
    line-height: 1.8;
}

/* Closing Section */
.vignette--closing {
    background: radial-gradient(ellipse at center, var(--mid-plum) 0%, var(--darker-plum) 70%);
}

.closing-content {
    text-align: center;
}

.closing-text {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-style: italic;
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--cream);
    line-height: 1.5;
}

.closing-text em {
    color: var(--bright-gold);
    font-style: italic;
}

.pulse-heart {
    width: 40px;
    height: 40px;
    margin: 3rem auto 0;
    position: relative;
}

.pulse-heart::before,
.pulse-heart::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 32px;
    background: var(--terracotta);
    border-radius: 20px 20px 0 0;
}

.pulse-heart::before {
    left: 0;
    transform: rotate(-45deg);
    transform-origin: bottom right;
}

.pulse-heart::after {
    left: 18px;
    transform: rotate(45deg);
    transform-origin: bottom left;
}

.pulse-heart {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.scroll-indicator.hidden {
    opacity: 0;
    pointer-events: none;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 30px;
    background: var(--warm-gold);
    opacity: 0.6;
    animation: scrollPulse 2s ease-in-out infinite;
}

/* Animations */
@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heartFloat {
    0%, 100% { transform: rotateX(55deg) rotateZ(-45deg) translateZ(0); }
    50% { transform: rotateX(55deg) rotateZ(-45deg) translateZ(15px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.8; transform: scaleY(1.3); }
}

/* Reveal animations for scroll */
.vignette {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.vignette--hero {
    opacity: 1;
    transform: none;
}