/* =========================================================
   ELVEX Kundendaten – Stylesheet
   Farben abgeleitet aus dem ELVEX-Logo
   ========================================================= */

:root {
    --c-primary: #1e3a6e;      /* Dunkelblau */
    --c-primary-2: #2d5aa0;    /* Mittelblau */
    --c-accent: #4a7fd4;       /* Hellblau / Akzent */
    --c-bg: #f0f2f5;           /* Hintergrund */
    --c-card: #ffffff;
    --c-text: #1a1a2e;
    --c-muted: #5a6478;
    --c-border: #d0d7e3;
    --c-border-soft: #eef1f6;
    --c-error: #d92d3a;
    --c-error-bg: #fdecee;
    --c-success: #1f9d6b;

    --radius: 8px;
    --radius-sm: 6px;
    --shadow-card: 0 8px 30px rgba(30, 58, 110, 0.08);
    --shadow-focus: 0 0 0 3px rgba(45, 90, 160, 0.15);
    --transition: 0.2s ease;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font);
    background-color: var(--c-bg);
    color: var(--c-text);
    line-height: 1.55;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--c-primary-2); }
a:hover { color: var(--c-primary); }

.page { min-height: 100vh; display: flex; flex-direction: column; }

/* ---- Header ---- */
.site-header {
    background: var(--c-card);
    border-bottom: 1px solid var(--c-border-soft);
    padding: 18px 20px;
}
.site-header__inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
}
.site-logo {
    height: 46px;
    width: auto;
    max-width: 100%;
    display: block;
}

/* ---- Container ---- */
.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 32px 20px 48px;
    flex: 1;
}

/* ---- Card ---- */
.card {
    background: var(--c-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 40px;
}
.card__head { margin-bottom: 28px; }
.card__title {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 800;
    color: var(--c-primary);
    letter-spacing: -0.02em;
}
.card__subtitle {
    margin: 0;
    color: var(--c-muted);
    font-size: 15px;
}

/* ---- Form-Sections ---- */
.form-section {
    padding: 24px 0;
    border-top: 1px solid var(--c-border-soft);
}
.form-section:first-of-type { border-top: none; padding-top: 8px; }
.form-section__title {
    margin: 0 0 18px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--c-primary-2);
    border-left: 3px solid var(--c-primary-2);
    padding-left: 12px;
}

/* ---- Fields ---- */
.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field__label {
    display: block;
    margin-bottom: 7px;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-text);
}
.req { color: var(--c-error); font-weight: 700; }
.opt { color: var(--c-muted); font-weight: 400; font-size: 13px; }

.field__control {
    width: 100%;
    font-family: inherit;
    font-size: 15px;
    color: var(--c-text);
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 13px 15px;
    transition: border-color var(--transition), box-shadow var(--transition);
    -webkit-appearance: none;
    appearance: none;
}
.field__control::placeholder { color: #9aa3b5; }
.field__control:focus {
    outline: none;
    border-color: var(--c-primary-2);
    box-shadow: var(--shadow-focus);
}
.field__control--textarea { resize: vertical; min-height: 96px; }

select.field__control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235a6478' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
}

.field__hint {
    margin: 6px 0 0;
    font-size: 12px;
    color: var(--c-muted);
}
.field__error {
    margin: 6px 0 0;
    font-size: 13px;
    color: var(--c-error);
    display: none;
}

/* Fehlerzustand */
.field.has-error .field__control {
    border-color: var(--c-error);
    background: var(--c-error-bg);
}
.field.has-error .field__error { display: block; }

/* ---- Grid ---- */
.grid { display: grid; gap: 16px; }
.grid--2 { grid-template-columns: 1fr 1fr; }
.grid--street { grid-template-columns: 3fr 1fr; }
.grid--zip { grid-template-columns: 1fr 3fr; }

/* ---- Checkbox ---- */
.field--checkbox { margin-bottom: 0; }
.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 15px;
    user-select: none;
}
.checkbox input {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
}
.checkbox__box {
    flex: 0 0 auto;
    width: 22px; height: 22px;
    border: 1px solid var(--c-border);
    border-radius: 5px;
    background: #fff;
    margin-top: 1px;
    position: relative;
    transition: all var(--transition);
}
.checkbox input:focus-visible + .checkbox__box {
    border-color: var(--c-primary-2);
    box-shadow: var(--shadow-focus);
}
.checkbox input:checked + .checkbox__box {
    background: var(--c-primary-2);
    border-color: var(--c-primary-2);
}
.checkbox__box::after {
    content: "";
    position: absolute;
    left: 7px; top: 3px;
    width: 6px; height: 11px;
    border: solid #fff;
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--transition);
}
.checkbox input:checked + .checkbox__box::after { transform: rotate(45deg) scale(1); }
.checkbox__label { color: var(--c-text); }

/* ---- Radio-Chips ---- */
.radio-group { display: flex; flex-wrap: wrap; gap: 12px; }
.radio-chip { position: relative; cursor: pointer; }
.radio-chip input {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
}
.radio-chip__label {
    display: inline-block;
    padding: 11px 22px;
    border: 1px solid var(--c-border);
    border-radius: 40px;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-muted);
    background: #fff;
    transition: all var(--transition);
}
.radio-chip input:checked + .radio-chip__label {
    border-color: var(--c-primary-2);
    background: var(--c-primary-2);
    color: #fff;
}
.radio-chip input:focus-visible + .radio-chip__label {
    box-shadow: var(--shadow-focus);
}
.link-btn {
    margin-top: 12px;
    background: none;
    border: none;
    color: var(--c-primary-2);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
}

/* ---- Conditional Bereiche ---- */
.conditional { margin-top: 18px; }
.conditional[hidden] { display: none; }

/* Animiertes Ein-/Ausblenden für Rechnungs-E-Mail */
.conditional-animate {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
    margin-top: 0;
    overflow: hidden;
}
.conditional-animate > * { min-height: 0; overflow: hidden; }
.conditional-animate.is-open {
    grid-template-rows: 1fr;
    opacity: 1;
    margin-top: 18px;
}

/* ---- Honeypot ---- */
.hp-field {
    position: absolute !important;
    left: -9999px !important;
    top: auto;
    width: 1px; height: 1px;
    overflow: hidden;
}

/* ---- Submit Button ---- */
.form-actions { margin-top: 32px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-sm);
    padding: 17px 28px;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.btn--primary {
    width: 100%;
    color: #fff;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-2) 100%);
    box-shadow: 0 4px 14px rgba(30, 58, 110, 0.25);
}
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(30, 58, 110, 0.32); }
.btn--primary:active { transform: translateY(0); }
.btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

.btn__spinner {
    display: none;
    width: 18px; height: 18px;
    border: 2.5px solid rgba(255,255,255,0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: elvex-spin 0.7s linear infinite;
}
.btn.is-loading .btn__spinner { display: inline-block; }
@keyframes elvex-spin { to { transform: rotate(360deg); } }

/* ---- Globale Fehlermeldung ---- */
.form-alert {
    background: var(--c-error-bg);
    border: 1px solid #f3b6bc;
    color: var(--c-error);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

/* ---- Erfolgsansicht ---- */
.success-view {
    text-align: center;
    padding: 40px 20px;
}
.success-view__icon {
    width: 84px; height: 84px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: rgba(31, 157, 107, 0.12);
    color: var(--c-success);
    display: flex;
    align-items: center;
    justify-content: center;
}
.success-view__title {
    margin: 0 0 10px;
    font-size: 24px;
    font-weight: 800;
    color: var(--c-primary);
}
.success-view__text {
    margin: 0 auto;
    max-width: 440px;
    color: var(--c-muted);
    font-size: 15px;
}
.success-view__sign {
    margin: 22px auto 0;
    font-size: 14px;
    line-height: 1.6;
    color: var(--c-primary);
}
.success-view__sign strong {
    letter-spacing: 0.14em;
    font-weight: 800;
}

/* ---- Footer ---- */
.site-footer {
    text-align: center;
    margin-top: 28px;
    color: var(--c-muted);
}
.site-footer__nav { font-size: 14px; }
.site-footer__nav a { color: var(--c-primary-2); text-decoration: none; }
.site-footer__nav a:hover { text-decoration: underline; }
.site-footer__sep { margin: 0 10px; color: var(--c-border); }
.site-footer__copy { margin: 10px 0 0; font-size: 12px; color: #9aa3b5; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 640px) {
    .card { padding: 24px 18px; }
    .card__title { font-size: 24px; }
    .container { padding: 20px 14px 36px; }

    .grid--2,
    .grid--street,
    .grid--zip {
        grid-template-columns: 1fr;
    }
    .site-logo { height: 38px; }
    .radio-chip__label { padding: 10px 18px; }
}

/* Reduzierte Bewegung respektieren */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation-duration: 0.01ms !important; }
}