/* =========================
   Gem Soft RSVP (no JS styling)
========================= */

/* Tokens (Light default) */
:root{
    --yellow-500:#FF9900;
    --pink-500:#8F004C;

    --bg:#F8F0F0;       /* Grey 100 */
    --card:#ffffff;
    --text:#1E1E1E;     /* Grey 500 */
    --muted:rgba(30,30,30,.65);
    --border:#DDD4D4;   /* Grey 200 */

    --shadow:0 18px 60px rgba(30,30,30,.10);

    --btn-bg: var(--yellow-500);
    --btn-text:#ffffff;
    --btn-shadow:0 14px 28px rgba(255,153,0,.25);

    --seg-bg: rgba(248,240,240,.95);
    --seg-active-bg: #ffffff;
    --seg-active-border: rgba(30,30,30,.10);
    --seg-active-shadow: 0 6px 14px rgba(0,0,0,.08);

    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;

    --s1: 8px;
    --s2: 12px;
    --s3: 16px;
    --s4: 20px;
    --s5: 28px;

    --font-base: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    --font-accent: "TT Hoves", "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

/* Auto dark: only when device prefers dark */
@media (prefers-color-scheme: dark){
    html[data-theme="auto"]{
        --bg:#0f0f12;
        --card:#151518;
        --text:rgba(255,255,255,.92);
        --muted:rgba(255,255,255,.68);
        --border:rgba(255,255,255,.12);

        --shadow:0 22px 70px rgba(0,0,0,.55);

        --btn-bg: linear-gradient(180deg, #FFB84D, #FF9900);
        --btn-text:#1a1200;
        --btn-shadow:0 10px 26px rgba(255,153,0,.22);

        --seg-bg: rgba(255,255,255,.06);
        --seg-active-bg: rgba(255,255,255,.12);
        --seg-active-border: rgba(255,255,255,.18);
        --seg-active-shadow: none;
    }
}

/* Forced dark (always) */
html[data-theme="dark"]{
    --bg:#0f0f12;
    --card:#151518;
    --text:rgba(255,255,255,.92);
    --muted:rgba(255,255,255,.68);
    --border:rgba(255,255,255,.12);

    --shadow:0 22px 70px rgba(0,0,0,.55);

    --btn-bg: linear-gradient(180deg, #FFB84D, #FF9900);
    --btn-text:#1a1200;
    --btn-shadow:0 10px 26px rgba(255,153,0,.22);

    --seg-bg: rgba(255,255,255,.06);
    --seg-active-bg: rgba(255,255,255,.12);
    --seg-active-border: rgba(255,255,255,.18);
    --seg-active-shadow: none;
}

/* Reset-ish */
*{ box-sizing:border-box; }
html, body{ height: 100%; }
body{
    margin:0;
    font-family: var(--font-base);
    background: var(--bg);
    color: var(--text);
}

/* Page with brand blobs + vertical centering */
.page{
    min-height: 100vh;
    padding: 32px 16px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.page::before,
.page::after{
    content:"";
    position:absolute;
    width: 900px;
    height: 520px;
    z-index: 0;
}

.page::before{
    background: var(--yellow-500);
    top: -260px;
    left: -300px;
    border-radius: 220px 120px 220px 140px;
    transform: rotate(-6deg);
    opacity: .9;
}

.page::after{
    background: var(--pink-500);
    bottom: -280px;
    right: -340px;
    border-radius: 160px 260px 140px 220px;
    transform: rotate(-6deg);
    opacity: .9;
}

/* soften blobs on dark */
@media (prefers-color-scheme: dark){
    html[data-theme="auto"] .page::before,
    html[data-theme="auto"] .page::after{ opacity: .45; }
}
html[data-theme="dark"] .page::before,
html[data-theme="dark"] .page::after{ opacity: .45; }

/* Layout */
.container{
    position: relative;
    z-index: 1;
    width: min(1040px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 20px;
    align-items: stretch;
}

@media (max-width: 900px){
    .page{ align-items: flex-start; }
    .container{ grid-template-columns: 1fr; }
}

/* Cards */
.card{
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    overflow: hidden;
    height: 100%;
}

@media (max-width: 900px){
    .card{ height: auto; }
}

/* Left header */
.card-header{
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
}

.brand{
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-logo{
    height: 32px;
    width: auto;
    display: block;
    flex: 0 0 auto;
}

.brand-text{
    min-width: 0;
}

.brand-title{
    font-family: var(--font-accent);
    font-weight: 800;
    letter-spacing: -0.2px;
    line-height: 1.1;
}

.brand-subtitle{
    margin-top: 2px;
    font-size: 13px;
    color: var(--muted);
}

/* Left body with stable vertical rhythm */
.card-body{
    padding: 26px 22px 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.title{
    margin: 0;
    font-family: var(--font-accent);
    font-weight: 800;
    letter-spacing: -0.3px;
    font-size: 26px;
    line-height: 1.15;
}

.lead{
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

/* Form */
.form{
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.grid{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 520px){
    .grid{ grid-template-columns: 1fr; }
}

.field{ display: block; }

.label{
    display: block;
    margin: 0 0 6px;
    font-size: 13px;
    color: var(--muted);
}

.input{
    width: 100%;
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    outline: none;
}

.input::placeholder{ color: rgba(30,30,30,.40); }
@media (prefers-color-scheme: dark){
    html[data-theme="auto"] .input::placeholder{ color: rgba(255,255,255,.35); }
}
html[data-theme="dark"] .input::placeholder{ color: rgba(255,255,255,.35); }

.input:focus{
    border-color: rgba(255,153,0,.65);
    box-shadow: 0 0 0 4px rgba(255,153,0,.20);
}

/* Segmented control */
.choice{
    display: flex;
    gap: 10px;
    padding: 6px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--seg-bg);
}

.choice-item{ flex: 1; cursor: pointer; }
.choice-input{ display: none; }

.choice-pill{
    display: block;
    padding: 12px;
    border-radius: 999px;
    text-align: center;
    font-weight: 700;
    border: 1px solid transparent;
    color: var(--text);
}

.choice-input:checked + .choice-pill{
    background: var(--seg-active-bg);
    border-color: var(--seg-active-border);
    box-shadow: var(--seg-active-shadow);
}

/* Submit */
.submit{
    margin-top: 6px;
    width: 100%;
    padding: 14px;
    border-radius: 999px;
    border: none;
    background: var(--btn-bg);
    color: var(--btn-text);
    font-weight: 800;
    font-size: 15px;
    font-family: inherit;
    cursor: pointer;
    box-shadow: var(--btn-shadow);
}

/* Right info card */
.info{
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    overflow: hidden;
}

.info-block{
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 14px;
    background: transparent;
}

.info-title{
    font-family: var(--font-accent);
    font-weight: 800;
    margin-bottom: 6px;
}

.info-value{
    color: var(--muted);
    line-height: 1.45;
}

/* Minimal theme toggle */
.theme-toggle{
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 20;

    width: 42px;
    height: 42px;
    border-radius: 999px;

    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 18px;
    cursor: pointer;

    box-shadow: 0 6px 18px rgba(0,0,0,.12);
    transition: transform .12s ease;
}

.theme-toggle:hover{ transform: translateY(-1px); }

@media (prefers-color-scheme: dark){
    html[data-theme="auto"] .theme-toggle{
        background: rgba(255,255,255,.06);
    }
}
html[data-theme="dark"] .theme-toggle{
    background: rgba(255,255,255,.06);
}

/* Validation helpers */
.input.is-invalid{
    border-color: rgba(143,0,76,.55);
    box-shadow: 0 0 0 4px rgba(143,0,76,.18);
}

.choice.is-invalid{
    border-color: rgba(143,0,76,.45);
}

.field-error{
    margin-top: 8px;
    font-size: 13px;
    color: rgba(143,0,76,.95);
    line-height: 1.35;
}

.privacy-note{
    margin-top: 14px;
    font-size: 12px;
    line-height: 1.45;
    color: var(--muted);
    text-align: center;
}

.privacy-note a{
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.privacy-note a:hover{
    color: var(--text);
}