:root {
    --color-bg: #FCFBF8; /* Off-white / Cream */
    --color-bg-panel: rgba(255, 255, 255, 0.85); /* White solid panel */
    --color-primary: #1A1A1A; /* Deep dark grey/black for elegance */
    --color-primary-hover: #ffffff;
    --color-text-main: #2C2C2C;
    --color-text-muted: #666666;
    --color-border: rgba(26, 26, 26, 0.15);
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Prompt', sans-serif;
    --font-choice: 'Inter', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --glass-blur: blur(12px);
    --shadow-elegant: 0 4px 30px rgba(0, 0, 0, 0.03);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    /* Clean subtle gradient for off-white bg */
    background-image: radial-gradient(circle at 50% 0%, #FFFFFF 0%, #FCFBF8 70%);
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.app-container {
    width: 100%;
    max-width: 600px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Background Effects */
.ambient-glow {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80vw;
    height: 80vw;
    max-width: 600px;
    max-height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26, 26, 26, 0.03) 0%, rgba(252, 251, 248, 0) 70%);
    z-index: -1;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    animation: fadeIn 0.8s ease-out forwards;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    justify-content: center;
}

/* Language Toggle */
.lang-toggle-btn {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    backdrop-filter: var(--glass-blur);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    box-shadow: var(--shadow-elegant);
    font-family: var(--font-choice);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.lang-opt {
    cursor: pointer;
    transition: var(--transition-smooth);
    letter-spacing: 1px;
}

.lang-opt:hover {
    color: var(--color-primary);
}

.lang-opt.active {
    color: var(--color-primary);
    font-weight: 600;
}

.lang-delim {
    opacity: 0.3;
    font-size: 0.7rem;
}

/* Home Screen */
.home-container {
    text-align: center;
}

.brand-logo {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 4px;
    min-height: 3.5rem;
    display: block;
}

/* Individual letter animation for logo */
.logo-letter {
    display: inline-block;
    opacity: 0;
    animation: letterPop 0.5s ease-out forwards;
}

.home-tagline {
    font-family: var(--font-choice);
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 3px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 3rem;
    line-height: 1.7;
}

/* Common Button */
.btn {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: 1rem 2rem;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition-smooth);
    width: 100%;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--color-primary);
    z-index: -1;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease-out;
}

.btn:hover {
    color: var(--color-bg);
}
.btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.btn-solid {
    background: var(--color-primary);
    color: var(--color-bg);
}
.btn-solid::before {
    background: var(--color-text-main);
}
.btn-solid:hover {
    color: var(--color-bg);
}

/* Gender Selection */
.gender-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.option-card {
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    backdrop-filter: var(--glass-blur);
    padding: 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
    color: var(--color-text-main);
    font-size: 1rem;
    font-family: var(--font-choice);
    font-weight: 300;
    letter-spacing: 0.04em;
    box-shadow: var(--shadow-elegant);
}

.option-card:hover {
    border-color: var(--color-primary);
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.option-card.selected {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-bg);
    transform: scale(0.98);
}

/* Quiz Screen */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.progress-bar-container {
    width: 100%;
    height: 1px;
    background: var(--color-border);
    margin-bottom: 2rem;
    border-radius: 2px;
    overflow: visible; /* Allow phase dots to show above the bar */
    position: relative;
}

.phase-dot {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-border);
    border: 1px solid var(--color-bg);
    transition: background 0.4s ease;
    z-index: 1;
}

.progress-bar {
    height: 100%;
    background: var(--color-primary);
    width: 0%;
    transition: width 0.5s ease-out;
}

.question-title-tag {
    color: var(--color-text-muted);
    font-family: var(--font-choice);
    font-size: 0.75rem;
    font-weight: 300;
    text-align: center;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.question-text {
    font-size: 1.5rem;
    line-height: 1.4;
    margin-bottom: 2.5rem;
    text-align: center;
    font-weight: 400;
    color: var(--color-primary);
}

.choices-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.choice-btn {
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    padding: 1.2rem 1.5rem;
    border-radius: 6px;
    color: var(--color-text-main);
    font-family: var(--font-choice);
    font-size: 0.9rem;
    font-weight: 300;
    letter-spacing: 0.04em;
    line-height: 1.5;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-elegant);
}

.choice-btn:hover {
    border-color: var(--color-primary);
    background: #fff;
    transform: translateX(4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
}

.choice-btn.selected {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-bg);
    transform: translateX(4px);
}

/* Result Screen */
.result-container {
    padding: 2rem 0;
    text-align: center;
}

.result-completed-tag {
    font-family: var(--font-choice);
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 3px;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.character-desc {
    font-size: 0.95rem;
    color: var(--color-text-main);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    background: var(--color-bg-panel);
    padding: 1.8rem;
    border-radius: 8px;
    border-top: 1px solid var(--color-primary);
    box-shadow: var(--shadow-elegant);
    text-align: left;
}

.signature-scent {
    margin-bottom: 2.5rem;
}

/* Animated divider before perfume name */
.reveal-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1.5rem 0;
}
.reveal-line {
    display: block;
    height: 1px;
    width: 0;
    background: var(--color-primary);
    animation: drawLine 0.8s 0.1s ease-out forwards;
}

/* Character Image */
.char-image-wrapper {
    display: flex;
    justify-content: center;
    margin: 1rem 0 0.5rem;
    animation: charFloat 3s ease-in-out infinite;
}

.char-image {
    width: 200px;
    height: 200px;
    object-fit: contain;
    mix-blend-mode: multiply; /* Blends the white background into the app's cream background */
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateX(var(--rotate-x, 0deg)) rotateY(var(--rotate-y, 0deg)) scale3d(1, 1, 1);
    transition: transform 0.1s ease-out; /* Smooth recovery when mouse moves */
    will-change: transform;
}

.char-placeholder {
    font-size: 5rem;
    margin: 1rem 0 0.5rem;
    animation: charFloat 3s ease-in-out infinite;
}

.scent-name {
    font-size: 2.8rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 400;
    line-height: 1.1;
}

.scent-tags {
    display: inline-block;
    border: 1px solid var(--color-border);
    padding: 0.35rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-family: var(--font-choice);
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    color: var(--color-text-muted);
}

.scent-vibe {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
    font-family: var(--font-heading);
    font-style: italic;
}

.scent-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    text-align: left;
}

/* Staggered result reveal */
.result-reveal {
    opacity: 0;
    animation: slideUp 0.7s ease-out forwards;
}
.r-block-1 { animation-delay: 0.1s; }
.r-block-2 { animation-delay: 0.3s; }
.r-block-3 { animation-delay: 0.5s; }
.r-block-4 { animation-delay: 0.7s; }
.r-block-5 { animation-delay: 0.9s; }

.alternatives-section {
    margin-bottom: 0;
}

.alternatives-title {
    font-size: 0.75rem;
    font-family: var(--font-choice);
    font-weight: 300;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.8rem;
    text-align: left;
    text-transform: uppercase;
}

.alternatives-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
}

.alt-card {
    background: var(--color-bg-panel);
    padding: 1.2rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-elegant);
}

.alt-name {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.alt-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --- Analyzing Animations --- */
.analyzing-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    text-align: center;
}

.liquid-orb {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #d4af37, #fdf8e1, #aa781f);
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    animation: liquidMorph 4s ease-in-out infinite, orbGlow 2s ease-in-out infinite alternate;
    margin-bottom: 2rem;
}

.analyzing-text {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-size: 1.2rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    animation: pulse 2s ease-in-out infinite;
}

.analyzing-subtitle {
    font-family: var(--font-choice);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
    font-weight: 300;
}

#analyzing-msg {
    transition: opacity 0.3s ease;
}

/* Capture Area */
.capture-area.capturing {
    background: var(--color-bg);
    width: 450px; /* Fixed width for consistent generation */
    height: 800px; /* Enforce 9:16 aspect ratio (450x800) */
    padding: 3rem 2rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative; /* Remove border-radius to fit edge-to-edge on IG */
}

/* Ensure images don't overflow the new fixed height */
.capture-area.capturing .char-image {
    max-height: 220px;
    width: auto;
}

.capture-area.capturing .result-reveal {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
}

/* Share/Copy Button */
.share-copy-btn {
    font-family: var(--font-choice);
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 2px;
    border-style: dashed;
}

/* Result Screen */
.result-title {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
    letter-spacing: 4px;
    font-family: var(--font-choice);
    font-weight: 300;
    text-transform: uppercase;
}

/* Animations */
@keyframes liquidMorph {
    0%, 100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
    34% { border-radius: 70% 30% 50% 50% / 30% 30% 70% 70%; }
    67% { border-radius: 100% 60% 60% 100% / 100% 100% 60% 60%; }
}

@keyframes orbGlow {
    from { box-shadow: 0 0 10px rgba(212, 175, 55, 0.3); }
    to { box-shadow: 0 0 35px rgba(212, 175, 55, 0.6); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

@keyframes letterPop {
    0% { opacity: 0; transform: translateY(6px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes drawLine {
    from { width: 0; }
    to { width: 60px; }
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); }
}

.fade-out {
    animation: fadeOut 0.4s ease-in forwards;
}

/* --- Responsive Layout Adjustments --- */
.result-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2.5rem;
}

.result-actions a {
    display: block;
    width: 100%;
}

/* Mobile Devices (phones, 480px and down) */
@media (max-width: 480px) {
    .brand-logo { 
        font-size: 2.2rem; 
        margin-bottom: 0.2rem;
    }
    .screen { 
        padding: 1.5rem 1rem; 
        max-width: 100%; 
    }
    .question-text { 
        font-size: 1.25rem; 
        margin-bottom: 1.5rem; 
    }
    .scent-name { 
        font-size: 2.2rem; 
    }
    .btn { 
        padding: 0.8rem 1.5rem; 
        font-size: 0.95rem; 
    }
    .choice-btn { 
        padding: 1rem 1.2rem; 
        font-size: 0.85rem; 
    }
    .char-image { 
        width: 150px; 
        height: 150px; 
    }
    .analyzing-text { 
        font-size: 1rem; 
    }
    .lang-toggle-btn {
        top: 1rem;
        right: 1rem;
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }
    .result-container {
        padding: 1rem 0;
    }
}

/* Tablets & iPads (768px to 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
    .app-container { 
        max-width: 100%; 
    }
    .screen { 
        max-width: 650px; 
        padding: 2.5rem 2rem; 
    }
    .brand-logo { 
        font-size: 3.2rem; 
        margin-bottom: 1rem; 
    }
    .home-tagline {
        font-size: 0.95rem;
        letter-spacing: 3px;
    }
    .subtitle {
        font-size: 1.05rem;
        margin-bottom: 3.5rem;
    }
    .question-text { 
        font-size: 1.6rem; 
        margin-bottom: 3rem; 
    }
    .choice-btn { 
        padding: 1.25rem 1.8rem; 
        font-size: 1rem; 
    }
    .gender-options { 
        flex-direction: row; 
        justify-content: center; 
        gap: 1.5rem; 
    }
    .gender-options .option-card { 
        flex: 1; 
        padding: 2rem 1rem;
        font-size: 1.15rem;
    }
    .scent-name { 
        font-size: 3rem; 
    }
    .char-image-wrapper {
        margin: 1.5rem 0;
    }
    .char-image { 
        width: 220px; 
        height: 220px; 
    }
    .btn { 
        padding: 1.1rem 2.2rem; 
        font-size: 1.1rem; 
    }
    .result-container { 
        padding: 2rem 0; 
    }
    
    /* Make alternatives layout horizontal */
    .alternatives-list {
        flex-direction: row;
        gap: 1.5rem;
    }
    .alt-card {
        flex: 1;
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    /* Result Actions Grid */
    .result-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }
    .result-actions .share-copy-btn,
    .result-actions #replay-btn {
        grid-column: span 2;
    }
}

/* Desktop (1025px and up) */
@media (min-width: 1025px) {
    .app-container { 
        max-width: 900px; 
    }
    .screen { 
        max-width: 700px; 
        padding: 3rem 2rem; 
    }
    .brand-logo { 
        font-size: 4rem; 
        margin-bottom: 1.5rem; 
    }
    .home-tagline {
        font-size: 1rem;
        letter-spacing: 4px;
    }
    .subtitle {
        font-size: 1.1rem;
        margin-bottom: 4rem;
    }
    .question-text { 
        font-size: 1.8rem; 
        margin-bottom: 3.5rem; 
    }
    .choice-btn { 
        padding: 1.5rem 2rem; 
        font-size: 1.05rem; 
    }
    .gender-options { 
        flex-direction: row; 
        justify-content: center; 
        gap: 2rem; 
    }
    .gender-options .option-card { 
        flex: 1; 
        padding: 2.5rem 1rem;
        font-size: 1.2rem;
    }
    .scent-name { 
        font-size: 3.5rem; 
    }
    .char-image-wrapper {
        margin: 2rem 0;
    }
    .char-image { 
        width: 250px; 
        height: 250px; 
    }
    .btn { 
        padding: 1.2rem 2.5rem; 
        font-size: 1.2rem; 
    }
    .result-container { 
        padding: 3rem 0; 
    }
    
    /* Make alternatives layout horizontal */
    .alternatives-list {
        flex-direction: row;
        gap: 2rem;
    }
    .alt-card {
        flex: 1;
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    /* Result Actions Grid */
    .result-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    .result-actions .share-copy-btn,
    .result-actions #replay-btn {
        grid-column: span 2;
    }
}