/* ═══════════════════════════════════════════════
   HAIR FACTOR SALON — REVIEW FUNNEL STYLES
   Mobile-First · Premium Salon Aesthetic
   ═══════════════════════════════════════════════ */

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

:root {
    --bg: #0c0b10;
    --bg2: #141318;
    --bg3: #1a1920;
    --card: #1e1d24;
    --card-border: rgba(255,255,255,0.06);
    --text: #faf8f5;
    --text2: #b0adb5;
    --text3: #7a7880;
    --accent: #d4b896;
    --accent-l: #f0dfc8;
    --gold: #f5c842;
    --gold-glow: rgba(245,200,66,0.25);
    --green: #4ade80;
    --red: #f87171;
    --serif: 'Playfair Display', Georgia, serif;
    --sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --radius: 20px;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ═══ APP WRAPPER ═══ */
.app-wrapper {
    width: 100%;
    max-width: 480px;
    position: relative;
}

/* ═══ SCREEN TRANSITIONS ═══ */
.screen {
    display: none;
    animation: fadeSlideIn 0.5s var(--ease) forwards;
}
.screen.active {
    display: block;
}
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ═══ REVIEW CARD ═══ */
.review-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.03);
    position: relative;
    overflow: hidden;
}
.review-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.4;
}

/* ═══ SALON BRAND ═══ */
.salon-brand {
    text-align: center;
    margin-bottom: 1.5rem;
}
.brand-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    display: inline-block;
    animation: scissorFloat 3s ease-in-out infinite alternate;
}
@keyframes scissorFloat {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-6px) rotate(5deg); }
}
.salon-name {
    font-family: var(--serif);
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text);
}
.salon-name span {
    color: var(--accent);
    font-weight: 400;
    font-style: italic;
}

/* ═══ DIVIDER ═══ */
.divider {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 1.5rem auto;
}

/* ═══ QUESTION ═══ */
.question {
    font-family: var(--sans);
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text2);
    text-align: center;
    margin-bottom: 2rem;
}

/* ═══ STAR RATING ═══ */
.stars-container {
    display: flex;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.5rem 0 1rem;
}
.star-btn {
    width: 52px;
    height: 52px;
    padding: 6px;
    border-radius: 12px;
    transition: all 0.25s var(--ease);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
.star-btn svg {
    width: 100%;
    height: 100%;
    fill: transparent;
    stroke: rgba(255,255,255,0.35);
    stroke-width: 1.5;
    transition: all 0.3s var(--ease);
    filter: drop-shadow(0 0 0 transparent);
}
.star-btn:hover svg,
.star-btn.hovered svg {
    fill: var(--gold);
    stroke: none;
    filter: drop-shadow(0 0 8px var(--gold-glow));
    transform: scale(1.1);
}
.star-btn.selected svg {
    fill: var(--gold);
    stroke: none;
    filter: drop-shadow(0 0 12px var(--gold-glow));
    transform: scale(1.15);
}
.star-btn:active svg {
    transform: scale(0.9);
}
.star-btn.pop svg {
    animation: starPop 0.4s var(--ease);
}
@keyframes starPop {
    0% { transform: scale(1); }
    40% { transform: scale(1.35); }
    70% { transform: scale(0.95); }
    100% { transform: scale(1.15); }
}
.star-hint {
    text-align: center;
    font-size: 0.78rem;
    color: var(--text3);
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* ═══ FEEDBACK CARD ═══ */
.feedback-card {
    padding: 2rem 1.5rem 2.5rem;
}
.feedback-header {
    text-align: center;
    margin-bottom: 0.5rem;
}
.emoji-sad {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}
.feedback-header h2 {
    font-family: var(--serif);
    font-size: 1.35rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}
.feedback-subtitle {
    font-size: 0.88rem;
    color: var(--text2);
    line-height: 1.6;
}

/* ═══ FORM STYLES ═══ */
.form-section {
    margin-top: 1.5rem;
}
.form-section-title {
    font-family: var(--sans);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.optional-tag {
    font-size: 0.65rem;
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: 0;
    color: var(--text3);
    background: rgba(255,255,255,0.05);
    padding: 2px 8px;
    border-radius: 20px;
}
.form-section-desc {
    font-size: 0.8rem;
    color: var(--text3);
    line-height: 1.55;
    margin-bottom: 1rem;
}
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text2);
    margin-bottom: 0.4rem;
    letter-spacing: 0.02em;
}
.required-star {
    color: var(--red);
    font-weight: 700;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    color: var(--text);
    background: var(--bg2);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    outline: none;
    transition: all 0.25s var(--ease);
    -webkit-appearance: none;
    appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text3);
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212,184,150,0.1);
}
.form-group textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}

/* ═══ SUBMIT BUTTON ═══ */
.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 1rem;
    margin-top: 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--bg);
    background: linear-gradient(135deg, var(--accent), var(--accent-l));
    border-radius: 14px;
    transition: all 0.3s var(--ease);
    box-shadow: 0 4px 20px rgba(212,184,150,0.25);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212,184,150,0.35);
}
.btn-submit:active {
    transform: translateY(0);
}
.btn-submit:disabled {
    opacity: 0.5;
    pointer-events: none;
}
.btn-loading {
    display: flex;
    align-items: center;
    gap: 8px;
}
.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ═══ RETRY BUTTON ═══ */
.btn-retry {
    margin-top: 1.5rem;
}

/* ═══ THANK YOU SCREENS ═══ */
.thanks-card {
    text-align: center;
    padding: 3rem 2rem;
}
.thanks-card h2 {
    font-family: var(--serif);
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}
.thanks-card p {
    font-size: 0.92rem;
    color: var(--text2);
    line-height: 1.6;
}

/* Success checkmark */
.success-check {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
}
.success-check svg {
    width: 100%;
    height: 100%;
}
.success-check circle {
    stroke-dasharray: 160;
    stroke-dashoffset: 160;
    animation: drawCircle 0.6s 0.2s var(--ease) forwards;
}
.success-check path {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: drawCheck 0.4s 0.6s var(--ease) forwards;
}
@keyframes drawCircle {
    to { stroke-dashoffset: 0; }
}
@keyframes drawCheck {
    to { stroke-dashoffset: 0; }
}

/* Heart emoji */
.success-heart {
    font-size: 3rem;
    margin-bottom: 1.25rem;
    animation: heartBeat 1s ease-in-out;
}
@keyframes heartBeat {
    0% { transform: scale(0); }
    50% { transform: scale(1.3); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

/* Redirect notice */
.redirect-notice {
    margin-top: 1rem;
    font-size: 0.78rem;
    color: var(--text3);
    letter-spacing: 0.04em;
}

/* ═══ ERROR CARD ═══ */
.error-card {
    text-align: center;
    padding: 3rem 2rem;
}
.error-icon {
    font-size: 3rem;
    margin-bottom: 1.25rem;
}
.error-card h2 {
    font-family: var(--serif);
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
}
.error-card p {
    font-size: 0.9rem;
    color: var(--text2);
    line-height: 1.6;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 480px) {
    body {
        padding: 0.75rem;
        align-items: flex-start;
        padding-top: 2rem;
    }
    .review-card {
        padding: 2rem 1.5rem;
        border-radius: 16px;
    }
    .salon-name {
        font-size: 1.75rem;
    }
    .star-btn {
        width: 48px;
        height: 48px;
    }
    .stars-container {
        gap: 0.4rem;
    }
    .feedback-card {
        padding: 1.75rem 1.25rem 2rem;
    }
    .thanks-card {
        padding: 2.5rem 1.5rem;
    }
}

@media (max-width: 360px) {
    .star-btn {
        width: 42px;
        height: 42px;
    }
    .salon-name {
        font-size: 1.55rem;
    }
}

@media (min-width: 481px) {
    body {
        min-height: 100vh;
        align-items: center;
    }
}