/* ============================================================
   SOLID DEAL GMBH — Design System
   Dark Premium Corporate / Minimal / Architectural
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables ── */
:root {
    /* Colors */
    --color-bg: #111418;
    --color-bg-alt: #12161B;
    --color-surface: #181D23;
    --color-surface-2: #1E2530;
    --color-border: rgba(255, 255, 255, 0.07);
    --color-border-mid: rgba(255, 255, 255, 0.12);

    --color-white: #F7F6F2;
    --color-off-white: #F5F4EF;
    --color-gray-light: #E7E9EC;
    --color-gray-mid: #8B939E;
    --color-gray: #6E7781;

    --color-petrol: #1C5D63;
    --color-petrol-bright: #245F66;
    --color-petrol-dim: rgba(28, 93, 99, 0.15);
    --color-petrol-mid: rgba(28, 93, 99, 0.35);

    --color-bronze: #A4875A;
    --color-bronze-dim: rgba(164, 135, 90, 0.12);

    /* Section backgrounds */
    --bg-dark: #111418;
    --bg-mid: #181D23;
    --bg-light: #F7F6F2;

    /* Typography */
    --font-base: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 7rem;
    --space-2xl: 11rem;

    /* Borders */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 14px;

    /* Transitions */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Container */
    --max-width: 1280px;
    --gutter: clamp(1.5rem, 5vw, 4rem);
}

/* ── Reset & Base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-base);
    background-color: var(--color-bg);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

/* ── Container ── */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

/* ── Typography ── */
h1,
h2,
h3,
h4,
h5 {
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-white);
}

.display-xl {
    font-size: clamp(3rem, 7vw, 6.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.06;
}

.display-lg {
    font-size: clamp(2.2rem, 5vw, 4.2rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.1;
}

.display-md {
    font-size: clamp(1.6rem, 3vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.text-lead {
    font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    font-weight: 400;
    color: var(--color-gray-mid);
    line-height: 1.75;
    max-width: 56ch;
}

.text-body {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-gray-mid);
    line-height: 1.8;
}

.text-label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-petrol-bright);
}

.text-label-light {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-gray);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.8rem;
    font-family: var(--font-base);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-petrol);
    color: var(--color-white);
    border: 1px solid var(--color-petrol);
}

.btn-primary:hover {
    background: var(--color-petrol-bright);
    border-color: var(--color-petrol-bright);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-white);
    border: 1px solid var(--color-border-mid);
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-1px);
}

.btn-ghost-dark {
    background: transparent;
    color: var(--color-bg);
    border: 1px solid rgba(17, 20, 24, 0.25);
}

.btn-ghost-dark:hover {
    background: rgba(17, 20, 24, 0.06);
    transform: translateY(-1px);
}

.btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.btn:hover svg {
    transform: translateX(3px);
}

/* ── Navigation ── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.4rem var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
    background: transparent;
}

.nav.scrolled {
    background: rgba(17, 20, 24, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem var(--gutter);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.nav-logo-mark {
    width: 38px;
    height: 38px;
    background: #fff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    transition: var(--transition);
    padding: 5px;
}

.nav-logo-mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.nav-logo:hover .nav-logo-mark {
    box-shadow: 0 0 0 1.5px var(--color-petrol-bright);
}

.nav-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.nav-logo-name {
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--color-white);
}

.nav-logo-sub {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-gray);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-mid);
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-petrol-bright);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.nav-link:hover {
    color: var(--color-white);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link.active {
    color: var(--color-white);
}

.nav-link.active::after {
    transform: scaleX(1);
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.nav-menu-btn span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--color-white);
    transition: var(--transition);
}

/* Mobile Nav */
.nav-mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.nav-mobile.open {
    opacity: 1;
    pointer-events: all;
}

.nav-mobile-link {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    transition: color var(--transition);
}

.nav-mobile-link:hover {
    color: var(--color-petrol-bright);
}

.nav-mobile-close {
    position: absolute;
    top: 1.5rem;
    right: var(--gutter);
    font-size: 1.5rem;
    color: var(--color-gray);
    cursor: pointer;
    background: none;
    border: none;
    font-family: inherit;
    transition: color var(--transition);
}

.nav-mobile-close:hover {
    color: var(--color-white);
}

/* ── Section Utilities ── */
.section {
    padding: var(--space-xl) 0;
}

.section-sm {
    padding: var(--space-lg) 0;
}

.section-xl {
    padding: var(--space-2xl) 0;
}

.section-dark {
    background: var(--bg-dark);
}

.section-mid {
    background: var(--bg-mid);
}

.section-light {
    background: var(--bg-light);
    color: var(--color-bg);
}

.section-header {
    margin-bottom: var(--space-lg);
}

.section-header-label {
    margin-bottom: 1rem;
}

.section-header h2 {
    margin-bottom: 1.25rem;
}

.section-header .text-lead {
    max-width: 52ch;
}

/* ── Grid ── */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ── Cards ── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--color-border-mid);
    transform: translateY(-2px);
}

.card-petrol {
    background: var(--color-petrol-dim);
    border: 1px solid rgba(28, 93, 99, 0.3);
}

.card-petrol:hover {
    border-color: rgba(28, 93, 99, 0.5);
}

.card-lg {
    padding: 3.5rem;
}

/* ── Divider ── */
.divider {
    height: 1px;
    background: var(--color-border);
    width: 100%;
}

.divider-petrol {
    height: 1px;
    background: linear-gradient(90deg, var(--color-petrol) 0%, transparent 100%);
    width: 4rem;
    margin-bottom: 2rem;
}

/* ── Highlight / Badge ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.9rem;
    background: var(--color-petrol-dim);
    border: 1px solid rgba(28, 93, 99, 0.3);
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-petrol-bright);
}

/* ── Geometric BG elements ── */
.geo-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.geo-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 80%);
}

.geo-line {
    position: absolute;
    border: 1px solid var(--color-border);
    border-radius: 50%;
}

.geo-gradient {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.12;
}

/* ── Page Header ── */
.page-hero {
    padding-top: 10rem;
    padding-bottom: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.page-hero-label {
    margin-bottom: 1.25rem;
}

.page-hero h1 {
    margin-bottom: 1.5rem;
}

.page-hero .text-lead {
    max-width: 54ch;
}

/* ── Footer ── */
.footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-lg) 0 2.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2.5rem;
}

.footer-brand-tagline {
    font-size: 0.875rem;
    color: var(--color-gray);
    line-height: 1.7;
    margin-top: 1rem;
    max-width: 28ch;
}

.footer-col h5 {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-gray);
    margin-bottom: 1.25rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--color-gray);
    transition: color var(--transition);
}

.footer-link:hover {
    color: var(--color-white);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--color-gray);
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal-link {
    font-size: 0.8rem;
    color: var(--color-gray);
    transition: color var(--transition);
}

.footer-legal-link:hover {
    color: var(--color-white);
}

/* ── Animations ── */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-up.delay-1 {
    transition-delay: 0.1s;
}

.fade-up.delay-2 {
    transition-delay: 0.2s;
}

.fade-up.delay-3 {
    transition-delay: 0.3s;
}

.fade-up.delay-4 {
    transition-delay: 0.4s;
}

.fade-up.delay-5 {
    transition-delay: 0.5s;
}

/* ── Utility ── */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-sm {
    gap: var(--space-sm);
}

.gap-md {
    gap: var(--space-md);
}

.gap-lg {
    gap: var(--space-lg);
}

.mt-sm {
    margin-top: var(--space-sm);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.relative {
    position: relative;
}

.z-1 {
    position: relative;
    z-index: 1;
}

.w-full {
    width: 100%;
}

/* ── Inner page sections color override on light bg ── */
.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4 {
    color: var(--color-bg);
}

.section-light .text-lead,
.section-light .text-body {
    color: #4A5260;
}

.section-light .text-label-light {
    color: var(--color-gray);
}

/* ══ Specific Page Styles ══ */

/* — Contact Form — */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-gray);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-base);
    font-size: 0.95rem;
    color: var(--color-white);
    transition: var(--transition);
    outline: none;
    resize: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray);
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-petrol-bright);
    background: #1F2730;
}

.form-textarea {
    min-height: 140px;
}

/* — Principle/number items — */
.principle-number {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-petrol-bright);
    margin-bottom: 1rem;
}

/* — Stat block — */
.stat-block {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
}

.stat-value {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--color-white);
    line-height: 1;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--color-gray);
    margin-top: 0.4rem;
}

/* — Brand card — */
.brand-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.brand-card:hover {
    border-color: var(--color-border-mid);
    transform: translateY(-3px);
}

.brand-card-visual {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.brand-card-body {
    padding: 2.5rem;
}

.brand-card-name {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.brand-card-type {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-petrol-bright);
    margin-bottom: 1.25rem;
}

.brand-card-desc {
    font-size: 0.92rem;
    color: var(--color-gray-mid);
    line-height: 1.75;
}

/* — Geschäftsbereiche panel — */
.gb-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 3rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.gb-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-petrol);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.gb-panel:hover::before {
    transform: scaleX(1);
}

.gb-panel:hover {
    border-color: var(--color-border-mid);
}

.gb-icon {
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-border-mid);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    color: var(--color-petrol-bright);
}

.gb-panel h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.gb-panel p {
    font-size: 0.92rem;
    color: var(--color-gray-mid);
    line-height: 1.8;
}

.gb-list {
    margin-top: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.gb-list-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--color-gray-mid);
}

.gb-list-item::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-petrol-bright);
    flex-shrink: 0;
}

/* — Link arrow — */
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-petrol-bright);
    transition: gap var(--transition), color var(--transition);
    margin-top: 2rem;
}

.link-arrow svg {
    width: 14px;
    height: 14px;
    transition: transform var(--transition);
}

.link-arrow:hover {
    gap: 0.75rem;
}

.link-arrow:hover svg {
    transform: translateX(3px);
}

/* ══ RESPONSIVE ══ */
@media (max-width: 1100px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }

    .grid-4 {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 900px) {
    .grid-3 {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 5rem;
        --space-2xl: 7rem;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .nav-menu-btn {
        display: flex;
    }

    .nav-mobile {
        display: flex;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .display-xl {
        font-size: clamp(2.4rem, 9vw, 3.5rem);
    }

    .display-lg {
        font-size: clamp(1.9rem, 7vw, 2.8rem);
    }

    .gb-panel {
        padding: 2rem;
    }

    .card-lg {
        padding: 2rem;
    }

    .brand-card-body {
        padding: 1.75rem;
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 4rem;
        --space-2xl: 6rem;
    }

    .btn {
        padding: 0.8rem 1.4rem;
        font-size: 0.82rem;
    }
}