/* =========================================================
   NOVA ENERGIA – Stylesheet
   Brandbook: Deep Blue #041F44 | Nova Cyan #00E5FF
              Graphite Black #0B0B0B | Energy White #F4F7FA
   Typografie: Headline Technoid Bold (Fallback: Arial Black)
               Text: Source Sans Pro
   ========================================================= */

/* ---------- CSS Custom Properties ---------- */

:root {
    --deep-blue: #041F44;
    --nova-cyan: #00E5FF;
    --graphite: #0B0B0B;
    --energy-white: #F4F7FA;
    --surface: #FFFFFF;
    --border: #D0D8E4;
    --text-muted: #5A6B7E;
    --cyan-glow: rgba(0, 229, 255, 0.18);
    --error-bg: #FDECEA;
    --error-text: #B71C1C;
    --error-border: #F5C6C0;
    --success-bg: #E8F5E9;
    --success-text: #1B5E20;
    --success-border: #C8E6C9;
    --font-headline: 'Technoid', 'Arial Black', 'Helvetica Neue', sans-serif;
    --font-body: 'Source Sans Pro', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --radius: 6px;
    --transition: 0.2s ease;
}

/* ---------- Reset & Base ---------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    background-color: var(--energy-white);
    color: var(--graphite);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    color: var(--deep-blue);
    line-height: 1.25;
}

a {
    color: var(--deep-blue);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--nova-cyan);
}

/* ---------- Header ---------- */

.site-header {
    background-color: var(--graphite);
    border-bottom: 3px solid var(--nova-cyan);
    box-shadow: 0 2px 12px rgba(4, 31, 68, 0.25);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.65rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 44px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 6px var(--cyan-glow));
}

.site-title {
    font-family: var(--font-headline);
    color: var(--energy-white);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ---------- Inhalt ---------- */

.content {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    flex: 1;
}

.page-title {
    color: var(--deep-blue);
    font-size: 1.6rem;
    margin-top: 0;
    margin-bottom: 0.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--nova-cyan);
    display: inline-block;
}

.intro-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 640px;
    font-size: 1.05rem;
}

/* ---------- Tabelle: Kundenübersicht ---------- */

.kunden-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 1px 6px rgba(4, 31, 68, 0.08);
}

.kunden-table th,
.kunden-table td {
    padding: 0.85rem 1.25rem;
    text-align: left;
}

.kunden-table thead th {
    background-color: var(--deep-blue);
    color: var(--energy-white);
    font-family: var(--font-headline);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--nova-cyan);
}

.kunden-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition);
}

.kunden-table tbody tr:last-child {
    border-bottom: none;
}

.kunden-table tbody tr:nth-child(even) {
    background-color: rgba(0, 229, 255, 0.04);
}

.kunden-table tbody tr:hover {
    background-color: var(--deep-blue);
    color: var(--energy-white);
}

.no-data {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    padding: 2rem 1rem;
}

/* ---------- Footer ---------- */

.site-footer {
    background-color: var(--graphite);
    color: var(--text-muted);
    text-align: center;
    padding: 1.25rem;
    font-size: 0.85rem;
    border-top: 3px solid var(--nova-cyan);
}

/* =========================================================
   Formular: Datenblatt
   ========================================================= */

.datenblatt-form {
    max-width: 860px;
}

/* Sektionen */

.form-section {
    border: 1px solid var(--border);
    border-left: 4px solid var(--nova-cyan);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem 1.75rem 1.75rem;
    margin-bottom: 1.75rem;
    background-color: var(--surface);
    box-shadow: 0 1px 4px rgba(4, 31, 68, 0.06);
}

.form-section legend {
    font-family: var(--font-headline);
    color: var(--deep-blue);
    font-weight: 700;
    font-size: 1.1rem;
    padding: 0 0.6rem;
    letter-spacing: 0.3px;
}

/* Reihen & Gruppen */

.form-row {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 1.15rem;
    flex-wrap: wrap;
}

.form-row:last-child {
    margin-bottom: 0;
}

.form-group {
    flex: 1;
    min-width: 180px;
    display: flex;
    flex-direction: column;
}

.form-group-wide {
    flex: 3;
}

.form-group-narrow {
    flex: 0 0 120px;
    min-width: 100px;
}

/* Labels */

.form-group label {
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: var(--deep-blue);
    font-size: 0.88rem;
    letter-spacing: 0.2px;
}

/* Input-Felder */

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    padding: 0.7rem 0.9rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font-body);
    background-color: var(--energy-white);
    color: var(--graphite);
    transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: var(--deep-blue);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--nova-cyan);
    background-color: var(--surface);
    box-shadow: 0 0 0 3px var(--cyan-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

/* ---------- Radio / Checkbox Gruppen ---------- */

.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-group {
    flex-direction: row;
    gap: 2.5rem;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    font-size: 1rem;
    color: var(--graphite);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    transition: background-color var(--transition);
}

.radio-label:hover,
.checkbox-label:hover {
    background-color: var(--cyan-glow);
}

.radio-label input[type="radio"],
.checkbox-label input[type="radio"],
.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--nova-cyan);
    cursor: pointer;
    flex-shrink: 0;
}

/* ---------- Buttons ---------- */

.form-actions {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--border);
}

.btn {
    display: inline-block;
    padding: 0.85rem 2.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-headline);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-primary {
    background-color: var(--deep-blue);
    color: var(--nova-cyan);
    box-shadow: 0 2px 8px rgba(4, 31, 68, 0.3);
}

.btn-primary:hover {
    background-color: var(--graphite);
    box-shadow: 0 4px 14px rgba(0, 229, 255, 0.25);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(4, 31, 68, 0.2);
}

/* ---------- Alerts ---------- */

.alert {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.alert-error {
    background-color: var(--error-bg);
    color: var(--error-text);
    border: 1px solid var(--error-border);
    border-left: 4px solid var(--error-text);
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
    border-left: 4px solid var(--success-text);
}

/* ---------- Tooltip ---------- */

.tooltip-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--deep-blue);
    color: var(--nova-cyan);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: help;
    position: relative;
    vertical-align: middle;
    margin-left: 0.35rem;
    transition: background-color var(--transition), box-shadow var(--transition);
}

.tooltip-trigger:hover,
.tooltip-trigger:focus {
    background-color: var(--nova-cyan);
    color: var(--deep-blue);
    box-shadow: 0 0 8px var(--cyan-glow);
    outline: none;
}

.tooltip-box {
    display: none;
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 340px;
    background-color: var(--deep-blue);
    color: var(--energy-white);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    line-height: 1.5;
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    border: 1px solid var(--nova-cyan);
    box-shadow: 0 4px 20px rgba(4, 31, 68, 0.4);
    z-index: 200;
    text-align: left;
    white-space: normal;
    pointer-events: none;
}

.tooltip-box::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--deep-blue);
}

.tooltip-trigger:hover .tooltip-box,
.tooltip-trigger:focus .tooltip-box {
    display: block;
}

/* ---------- Wizard: Anlagentyp-Auswahl ---------- */

.wizard-options {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.wizard-option {
    flex: 1;
    min-width: 260px;
    cursor: pointer;
}

.wizard-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.wizard-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.5rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--energy-white);
    transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
    height: 100%;
}

.wizard-card-title {
    font-family: var(--font-headline);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--deep-blue);
    letter-spacing: 0.3px;
}

.wizard-card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.wizard-option:hover .wizard-card {
    border-color: var(--nova-cyan);
    box-shadow: 0 2px 12px var(--cyan-glow);
}

.wizard-option input[type="radio"]:checked + .wizard-card {
    border-color: var(--nova-cyan);
    background-color: var(--surface);
    box-shadow: 0 4px 16px var(--cyan-glow);
}

.wizard-option input[type="radio"]:checked + .wizard-card .wizard-card-title {
    color: var(--nova-cyan);
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
    .content {
        padding: 1.5rem 1rem;
    }

    .form-section {
        padding: 1.25rem 1.25rem 1.5rem 1.25rem;
    }

    .radio-group {
        flex-direction: column;
        gap: 0.75rem;
    }

    .form-row {
        gap: 0.75rem;
    }

    .form-group-narrow {
        flex: 1;
        min-width: 100px;
    }

    .header-inner {
        padding: 0.5rem 1rem;
    }

    .site-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .form-row {
        flex-direction: column;
        gap: 0.75rem;
    }

    .form-group,
    .form-group-wide,
    .form-group-narrow {
        flex: 1;
        min-width: 100%;
    }
}