/* ============================================================
   CSS Variables
   ============================================================ */
:root {
    --rose:          #D4878F;
    --rose-light:    #EDD5D8;
    --rose-dark:     #9B5C63;
    --rose-pale:     #FBF0F1;
    --cream:         #FDF8F6;
    --white:         #FFFFFF;
    --text:          #2C1A1A;
    --text-muted:    #8A7070;
    --border:        #EDE0E2;

    --shadow-sm:  0 2px 8px  rgba(180, 100, 110, 0.08);
    --shadow-md:  0 8px 24px rgba(180, 100, 110, 0.12);
    --shadow-lg:  0 20px 60px rgba(180, 100, 110, 0.18);

    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;

    --nav-h: 64px;
    --ease: 0.3s ease;

    --font-serif: Georgia, 'Noto Serif CJK SC', 'STSong', '宋体', serif;
    --font-sans:  -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', '微软雅黑', 'PingFang SC', 'Noto Sans SC', sans-serif;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}
body {
    font-family: var(--font-sans);
    background: var(--cream);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ============================================================
   Setup Modal
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(44, 26, 26, 0.55);
    backdrop-filter: blur(10px);
    z-index: 10020;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: opacity 0.4s ease;
}
.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}
.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    max-width: 440px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    text-align: center;
}
.modal-icon {
    font-size: 52px;
    margin-bottom: 16px;
    animation: heartbeat 1.8s ease-in-out infinite;
}
.modal-title {
    font-family: var(--font-serif);
    font-size: 24px;
    margin-bottom: 8px;
}
.modal-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 32px;
}
.form-group { margin-bottom: 20px; text-align: left; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}
.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 15px;
    color: var(--text);
    background: var(--cream);
    outline: none;
    transition: border-color var(--ease), box-shadow var(--ease);
}
.form-input:focus {
    border-color: var(--rose);
    box-shadow: 0 0 0 3px var(--rose-light);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 50px;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    outline: none;
    transition: all var(--ease);
}
.btn-primary {
    background: var(--rose);
    color: #fff;
    box-shadow: 0 4px 16px rgba(212, 135, 143, 0.38);
}
.btn-primary:hover {
    background: var(--rose-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(212, 135, 143, 0.46);
}
.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1.5px solid var(--border);
}
.btn-ghost:hover {
    border-color: var(--rose);
    color: var(--rose-dark);
    background: var(--rose-pale);
}
.btn-full { width: 100%; justify-content: center; margin-top: 8px; }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    z-index: 100;
    transition: background var(--ease), box-shadow var(--ease);
}
.nav.scrolled {
    background: rgba(253, 248, 246, 0.92);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--border);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 600;
}
.brand-heart {
    font-size: 22px;
    color: var(--rose);
    animation: heartbeat 2s ease-in-out infinite;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-link {
    padding: 8px 14px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--text-muted);
    transition: all var(--ease);
}
.nav-link:hover {
    background: var(--rose-pale);
    color: var(--rose-dark);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--ease);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-h);
    position: relative;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.55;
}
.blob-1 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, #F2C4C8 0%, transparent 70%);
    top: -120px; right: -80px;
    animation: blobFloat 8s ease-in-out infinite;
}
.blob-2 {
    width: 380px; height: 380px;
    background: radial-gradient(circle, #F9DFC4 0%, transparent 70%);
    bottom: 40px; left: -60px;
    animation: blobFloat 11s ease-in-out infinite reverse;
}
.blob-3 {
    width: 280px; height: 280px;
    background: radial-gradient(circle, #C8D9F9 0%, transparent 70%);
    top: 45%; left: 38%;
    animation: blobFloat 13s ease-in-out infinite;
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--rose-pale);
    border: 1px solid var(--rose-light);
    color: var(--rose-dark);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
}
.badge-dot {
    width: 6px; height: 6px;
    background: var(--rose);
    border-radius: 50%;
    animation: pulseDot 2s ease-in-out infinite;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(40px, 5vw, 64px);
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero-title em {
    font-style: italic;
    background: linear-gradient(135deg, var(--rose), var(--rose-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 40px;
    padding: 22px 28px;
    background: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    width: fit-content;
    box-shadow: var(--shadow-sm);
}
.stat-value {
    font-family: var(--font-serif);
    font-size: 38px;
    font-weight: 600;
    color: var(--rose-dark);
    line-height: 1;
    margin-bottom: 4px;
}
.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}
.stat-sep { color: var(--rose-light); font-size: 18px; }

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Card Stack ── */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.cards-stack {
    position: relative;
    width: 300px;
    height: 380px;
}
.vis-card {
    position: absolute;
    width: 260px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}
.vis-card-back {
    background: linear-gradient(135deg, #F9E4CE, #F5C5CA);
    padding: 28px;
    bottom: 0; left: 20px;
    transform: rotate(-6deg);
    animation: cardFloat 8s ease-in-out infinite;
    z-index: 1;
}
.vis-card-mid {
    background: linear-gradient(135deg, #C8D9F9, #DCC8F9);
    padding: 28px;
    bottom: 40px; left: 10px;
    transform: rotate(-2deg);
    animation: cardFloat 6s ease-in-out infinite 0.5s;
    z-index: 2;
}
.vis-card-front {
    background: var(--white);
    bottom: 80px; left: 0;
    transform: rotate(2deg);
    animation: cardFloat 7s ease-in-out infinite 1s;
    z-index: 3;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vis-card-content { text-align: center; }
.vis-icon { font-size: 32px; display: block; margin-bottom: 10px; }
.vis-label {
    font-size: 11px;
    color: rgba(44, 26, 26, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.vis-date, .vis-note {
    font-family: var(--font-serif);
    font-size: 15px;
    color: var(--text);
    font-style: italic;
}
.vis-card-placeholder {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
}
.vis-card-placeholder span { font-size: 40px; display: block; margin-bottom: 10px; }
.vis-card-placeholder p { font-size: 13px; }

/* ============================================================
   Features Section
   ============================================================ */
.features { padding: 100px 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.section-head { text-align: center; margin-bottom: 60px; }
.section-eyebrow {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--rose);
    margin-bottom: 12px;
}
.section-title {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 44px);
    color: var(--text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feat-card {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 36px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--white);
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: transform var(--ease), box-shadow var(--ease);
    color: var(--text);
}
.feat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.feat-card:hover .feat-arrow { transform: translateX(5px); }
.feat-card:hover .feat-bg { opacity: 1; }

.feat-bg {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--ease);
    border-radius: inherit;
}
.feat-photos   .feat-bg { background: linear-gradient(135deg, #FFF0F2, #FFE5E8); }
.feat-notes    .feat-bg { background: linear-gradient(135deg, #FFFBEE, #FFF0C8); }
.feat-timeline .feat-bg { background: linear-gradient(135deg, #F0F6FF, #DDEEFF); }
.feat-diary    .feat-bg { background: linear-gradient(135deg, #F0FFF7, #D5F5E8); }
.feat-bucket   .feat-bg { background: linear-gradient(135deg, #FFF4F0, #FFE4D5); }

.feat-body { position: relative; z-index: 1; flex: 1; }
.feat-icon { font-size: 40px; margin-bottom: 16px; display: block; }
.feat-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}
.feat-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 24px;
}
.feat-footer {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.feat-arrow { transition: transform var(--ease); }

/* ============================================================
   Footer
   ============================================================ */
.footer {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--border);
}
.footer-heart {
    font-size: 32px;
    color: var(--rose);
    margin-bottom: 16px;
    animation: heartbeat 2s ease-in-out infinite;
}
.footer p { color: var(--text-muted); font-size: 14px; margin-bottom: 6px; }
.footer-small { font-size: 12px !important; opacity: 0.5; }
.icp-link { color: inherit; text-decoration: none; }
.icp-link:hover { color: var(--rose); text-decoration: underline; }

/* ============================================================
   Scroll Animations
   ============================================================ */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* stagger delays for grid children */
.features-grid .feat-card:nth-child(1) { transition-delay: 0s;   }
.features-grid .feat-card:nth-child(2) { transition-delay: 0.08s; }
.features-grid .feat-card:nth-child(3) { transition-delay: 0.16s; }
.features-grid .feat-card:nth-child(4) { transition-delay: 0.24s; }

/* ============================================================
   Keyframes
   ============================================================ */
@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.18); }
}
@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.4; transform: scale(0.65); }
}
@keyframes blobFloat {
    0%, 100% { transform: translate(0,  0)   scale(1);    }
    33%       { transform: translate(20px, -20px) scale(1.05); }
    66%       { transform: translate(-15px, 15px) scale(0.96); }
}
@keyframes cardFloat {
    0%, 100% { transform: rotate(var(--r, 0deg)) translateY(0); }
    50%       { transform: rotate(var(--r, 0deg)) translateY(-12px); }
}

/* apply rotations via custom prop so animation can preserve them */
.vis-card-back  { --r: -6deg; }
.vis-card-mid   { --r: -2deg; }
.vis-card-front { --r:  2deg; }

/* ============================================================
   Homepage Photo Slideshow
   ============================================================ */
.slideshow-wrap {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: inherit;
}
.slideshow-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: slideFadeIn 0.7s ease;
}
.slideshow-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 14px;
    background: linear-gradient(to top, rgba(0,0,0,0.52), transparent);
    color: rgba(255,255,255,0.92);
    font-size: 12px;
    text-align: center;
    line-height: 1.4;
}
@keyframes slideFadeIn {
    from { opacity: 0; transform: scale(1.04); }
    to   { opacity: 1; transform: scale(1); }
}

/* ============================================================
   Miss You Section
   ============================================================ */
.miss-you-section {
    padding: 72px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--cream) 0%, var(--rose-pale) 50%, var(--cream) 100%);
    position: relative;
    overflow: hidden;
}
.miss-you-section::before {
    content: '♡';
    position: absolute;
    font-size: 320px;
    color: var(--rose-light);
    opacity: 0.25;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    line-height: 1;
}
.miss-you-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}
.miss-you-btn {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 32px 72px;
    background: linear-gradient(135deg, var(--rose) 0%, var(--rose-dark) 100%);
    color: #fff;
    border: none;
    border-radius: 100px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 0.02em;
    box-shadow: 0 12px 40px rgba(212, 135, 143, 0.45);
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}
.miss-you-btn:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 20px 60px rgba(212, 135, 143, 0.55);
}
.miss-you-btn:active { transform: scale(0.97); }
.miss-you-btn.loading { opacity: 0.7; pointer-events: none; }
.miss-you-btn-heart {
    font-size: 44px;
    display: block;
    animation: heartbeat 1.4s ease-in-out infinite;
}
.miss-you-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.32);
    width: 80px; height: 80px;
    margin-top: -40px; margin-left: -40px;
    transform: scale(0);
    animation: missYouRipple 0.7s linear;
    pointer-events: none;
}
@keyframes missYouRipple {
    to { transform: scale(8); opacity: 0; }
}
.miss-you-hint {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
}
.miss-you-config-btn {
    margin-top: 10px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 13px;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
    padding: 4px 8px;
    transition: color var(--ease);
}
.miss-you-config-btn:hover { color: var(--rose); }

/* Email config divider */
.miss-you-divider {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin: 4px 0 16px;
    position: relative;
}
.miss-you-divider::before,
.miss-you-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30%;
    height: 1px;
    background: var(--border);
}
.miss-you-divider::before { left: 0; }
.miss-you-divider::after  { right: 0; }

/* Email config note */
.miss-you-email-note {
    background: var(--rose-pale);
    border: 1px solid var(--rose-light);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-top: 12px;
    text-align: left;
}
.miss-you-email-note p {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 2px;
    line-height: 1.6;
}
.miss-you-email-note p:last-child { margin-bottom: 0; }
.miss-you-email-note code {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    background: var(--rose-light);
    padding: 1px 5px;
    border-radius: 4px;
    color: var(--rose-dark);
}

/* ============================================================
   Toast
   ============================================================ */
.toast-container {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    pointer-events: none;
}
.toast {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: 50px;
    font-size: 14px;
    background: var(--white);
    box-shadow: 0 8px 32px rgba(44, 26, 26, 0.14);
    border: 1px solid var(--border);
    animation: toastIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: auto;
    white-space: nowrap;
    max-width: calc(100vw - 48px);
    white-space: normal;
    text-align: center;
}
.toast-success { border-color: var(--rose-light); color: var(--rose-dark); }
.toast-error   { border-color: #F5C5C5; color: #9B3A3A; background: #FFF8F8; }
@keyframes toastIn {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}
@keyframes toastOut {
    from { transform: translateY(0);    opacity: 1; }
    to   { transform: translateY(10px); opacity: 0; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
        padding: 60px 24px;
    }
    .hero-badge   { margin: 0 auto 24px; }
    .hero-stats   { margin: 0 auto 40px; }
    .hero-actions { justify-content: center; }
    .hero-visual  { order: -1; }
    .cards-stack  { width: 240px; height: 300px; }
    .vis-card     { width: 200px; }
}

@media (max-width: 640px) {
    :root { --nav-h: 58px; }
    html, body { width: 100%; min-width: 0; }
    body { font-size: 14px; line-height: 1.6; }
    .nav-container { padding: 0 16px; }
    .nav-brand { min-width: 0; }
    .brand-heart { font-size: 30px; }
    .brand-text { font-size: 17px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .nav-links {
        display: none;
        position: fixed;
        top: var(--nav-h);
        left: 0; right: 0;
        background: var(--white);
        padding: 12px 16px;
        flex-direction: column;
        gap: 2px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border);
        max-height: calc(100dvh - var(--nav-h));
        overflow-y: auto;
    }
    .nav-links.open { display: flex; }
    .nav-link { width: 100%; padding: 11px 14px; border-radius: 12px; font-size: 14px; }
    .nav-toggle     { display: flex; }
    .btn { min-height: 44px; padding: 11px 20px; justify-content: center; }
    input, textarea, select { font-size: 16px !important; max-width: 100%; }
    .hero { min-height: auto; padding-top: var(--nav-h); }
    .hero-inner { gap: 26px; padding: 38px 16px 48px; }
    .hero-visual { transform: scale(.82); margin: -24px 0; }
    .hero-badge { max-width: 100%; margin-bottom: 16px; }
    .hero-title { font-size: 34px; line-height: 1.2; }
    .hero-desc { font-size: 15px; margin-bottom: 24px; }
    .hero-stats { width: 100%; margin-bottom: 24px; justify-content: center; }
    .hero-actions { display: grid; grid-template-columns: 1fr; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .features-grid  { grid-template-columns: 1fr; }
    .modal-overlay { padding: 14px; align-items: flex-end; }
    .modal { max-height: calc(100dvh - 28px); overflow-y: auto; padding: 26px 18px; border-radius: 22px; }
    .toast-container { left: 12px; right: 12px; bottom: calc(14px + env(safe-area-inset-bottom, 0px)); }
    .toast { width: 100%; max-width: none; font-size: 14px; }
}

@media (max-width: 390px) {
    .nav-container { padding: 0 12px; }
    .brand-text { max-width: 210px; }
    .hero-title { font-size: 30px; }
    .hero-visual { transform: scale(.72); margin: -42px 0; }
    .btn { padding-left: 15px; padding-right: 15px; }
}

/* ============================================================
   Mobile app shell — Android / PWA
   ============================================================ */
@media (max-width: 640px) {
    :root {
        --nav-h: 56px;
        --radius-sm: 12px;
        --radius-md: 16px;
        --radius-lg: 22px;
    }
    html {
        -webkit-text-size-adjust: none;
        text-size-adjust: none;
        background: #fdf9f7;
    }
    body {
        min-height: 100dvh;
        font-size: 14px;
        line-height: 1.5;
        overscroll-behavior-y: none;
        padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
    }
    button, a, input, textarea, select { touch-action: manipulation; }

    .nav {
        height: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
        background: rgba(253, 249, 247, .96);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
    }
    .nav-container {
        height: var(--nav-h);
        margin-top: env(safe-area-inset-top, 0px);
        padding: 0 16px;
    }
    .nav-brand { gap: 8px; }
    .brand-heart { font-size: 27px; line-height: 1; }
    .brand-text { font-family: var(--font-sans); font-size: 16px; font-weight: 650; }
    .nav-toggle {
        width: 42px;
        height: 42px;
        padding: 10px;
        align-items: center;
        justify-content: center;
        border-radius: 12px;
    }
    .nav-toggle, .nav-links { display: none !important; }
    .nav-toggle:active { background: var(--rose-pale); }
    .nav-toggle span { width: 21px; }
    .nav-links {
        top: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
        padding: 10px 12px calc(12px + env(safe-area-inset-bottom, 0px));
        gap: 3px;
        border-radius: 0 0 18px 18px;
        max-height: calc(100dvh - var(--nav-h) - env(safe-area-inset-top, 0px));
    }
    .nav-link { min-height: 44px; padding: 10px 14px; display: flex; align-items: center; }

    input, textarea, select {
        width: 100%;
        min-height: 44px;
        border-radius: 12px !important;
        font-size: 16px !important;
    }
    textarea { min-height: 104px; }
    .form-input { padding: 10px 13px; background: #fff; }
    .form-group { margin-bottom: 14px; }
    .form-label { margin-bottom: 6px; font-size: 13px; }

    .btn {
        min-height: 44px;
        padding: 10px 18px;
        gap: 6px;
        font-size: 14px;
        border-radius: 14px;
        box-shadow: none;
    }
    .btn:active { transform: scale(.985); }
    .btn-primary { box-shadow: 0 5px 14px rgba(212, 135, 143, .22); }

    .modal-overlay { padding: 10px; }
    .modal {
        width: 100%;
        max-height: min(86dvh, 720px);
        padding: 24px 18px calc(20px + env(safe-area-inset-bottom, 0px));
        border-radius: 24px 24px 18px 18px;
        text-align: left;
    }
    .modal-icon { font-size: 38px; margin-bottom: 10px; text-align: center; }
    .modal-title { font-size: 21px; text-align: center; }
    .modal-subtitle { margin-bottom: 20px; text-align: center; }

    .toast-container {
        left: 16px;
        right: 16px;
        bottom: calc(82px + env(safe-area-inset-bottom, 0px));
    }
    .toast {
        width: auto;
        max-width: 100%;
        min-height: 44px;
        padding: 11px 14px;
        border-radius: 14px;
        font-size: 13px;
        line-height: 1.45;
    }

    .mobile-tabbar {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 9000;
        height: calc(66px + env(safe-area-inset-bottom, 0px));
        padding: 5px 8px env(safe-area-inset-bottom, 0px);
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        background: rgba(255, 252, 250, .97);
        border-top: 1px solid rgba(212, 135, 143, .2);
        box-shadow: 0 -8px 28px rgba(90, 50, 58, .08);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
    }
    .mobile-tabbar-item {
        min-width: 0;
        min-height: 54px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        border-radius: 12px;
        color: #94787d;
        font-size: 10px;
        line-height: 1.1;
        -webkit-tap-highlight-color: transparent;
    }
    .mobile-tabbar-icon { font-size: 21px; line-height: 1; filter: grayscale(.25); }
    .mobile-tabbar-item.active {
        color: var(--rose-dark);
        background: linear-gradient(180deg, rgba(251, 240, 241, .45), var(--rose-pale));
        font-weight: 700;
    }
    .mobile-tabbar-item.active .mobile-tabbar-icon { transform: translateY(-1px); filter: none; }
    .pwa-action { bottom: calc(78px + env(safe-area-inset-bottom, 0px)) !important; }
    .pwa-update { bottom: calc(76px + env(safe-area-inset-bottom, 0px)) !important; }
}

@media (min-width: 641px) { .mobile-tabbar { display: none !important; } }

@media (max-width: 640px) {
    .mobile-page-ready .page-main,
    .mobile-page-ready .hero {
        animation: mobilePageIn .18s ease-out both;
    }
    @keyframes mobilePageIn {
        from { opacity: .72; transform: translateY(3px); }
        to { opacity: 1; transform: translateY(0); }
    }
}

@media (prefers-reduced-motion: reduce) {
    .mobile-page-ready .page-main,
    .mobile-page-ready .hero { animation: none !important; }
}