/* ============================================
   krah.cloud — Main Stylesheet
   Farbschema: Weiß, Blau, frische Highlights
   ============================================ */

:root {
    --krah-blue: #2196F3;
    --krah-blue-dark: #1565C0;
    --krah-blue-light: #64B5F6;
    --krah-sky: #E3F2FD;
    --krah-accent: #00BCD4;
    --krah-accent-light: #4DD0E1;
    --krah-white: #FFFFFF;
    --krah-gray: #F8F9FA;
    --krah-text: #2C3E50;
    --krah-text-light: #6C757D;
    --krah-gradient: linear-gradient(135deg, #1565C0 0%, #2196F3 50%, #00BCD4 100%);
    --navbar-height: 72px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--krah-text);
    overflow-x: hidden;
}

/* ---- Navbar ---- */
.navbar {
    height: var(--navbar-height);
    padding: 0;
    transition: background 0.3s ease, box-shadow 0.3s ease;
    background: transparent;
    display: flex;
    align-items: center;
}

.navbar > .container {
    display: flex;
    align-items: center;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    color: var(--krah-white) !important;
    letter-spacing: -0.5px;
}

.navbar.scrolled .navbar-brand {
    color: var(--krah-blue-dark) !important;
}

/* Navbar Logo: weiß auf transparent, farbig nach Scroll */
.navbar-logo-wrap {
    position: relative;
    display: inline-flex;
    width: 70px;
    height: 32px;
    flex-shrink: 0;
}

.navbar-logo {
    transition: opacity 0.3s ease;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.navbar-logo-white {
    opacity: 1;
}

.navbar-logo-color {
    opacity: 0;
}

.navbar.scrolled .navbar-logo-white {
    opacity: 0;
}

.navbar.scrolled .navbar-logo-color {
    opacity: 1;
}

.navbar .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.navbar.scrolled .nav-link {
    color: var(--krah-text) !important;
}

.navbar .nav-link:hover {
    color: var(--krah-white) !important;
}

.navbar.scrolled .nav-link:hover {
    color: var(--krah-blue) !important;
}

.navbar.scrolled .btn-outline-light {
    color: var(--krah-blue) !important;
    border-color: var(--krah-blue) !important;
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5);
}

.navbar.scrolled .navbar-toggler {
    border-color: rgba(0, 0, 0, 0.2);
}

/* ---- Service Cards ---- */
.services-section {
    background: var(--krah-white);
}

.service-card {
    background: var(--krah-white);
    border-radius: 16px;
    border: 1px solid #E8EEF3;
    transition: all 0.3s ease;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.15);
    border-color: var(--krah-blue-light);
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background: var(--krah-gradient);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.service-icon i {
    font-size: 1.8rem;
    color: var(--krah-white);
}

/* ---- Why Section ---- */
.why-section {
    background: var(--krah-sky);
}

.feature-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: 12px;
    background: var(--krah-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1.4rem;
    color: var(--krah-white);
}

/* ---- Logo als Illustration ---- */
.cloud-illustration {
    padding: 2rem;
}

.illustration-logo {
    width: 100%;
    max-width: 320px;
    opacity: 0.2;
    transition: opacity 0.3s ease;
}

.cloud-illustration:hover .illustration-logo {
    opacity: 0.35;
}

/* ---- Hero Logo ---- */
.hero-logo {
    display: block;
    margin: 0 auto 1.5rem;
    width: 340px;
    max-width: 80vw;
    filter: drop-shadow(0 4px 30px rgba(0, 0, 0, 0.15));
}

.hero-title {
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ---- Products Section ---- */
.products-section {
    background: var(--krah-white);
}

.product-card {
    background: var(--krah-white);
    border: 1px solid #E8EEF3;
    border-radius: 16px;
    transition: all 0.3s ease;
    color: var(--krah-text);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(33, 150, 243, 0.15);
    border-color: var(--krah-blue-light);
    color: var(--krah-text);
}

.product-logo {
    height: 50px;
    flex-shrink: 0;
}

/* ---- CTA Section ---- */
.cta-section {
    background: var(--krah-gradient);
}

/* ---- Footer ---- */
.footer-section {
    background: #1a1a2e;
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 1rem;
}

.footer-section h5 {
    color: var(--krah-white);
    margin-bottom: 1rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
    line-height: 2;
}

.footer-section a:hover {
    color: var(--krah-accent-light);
}

.footer-section hr {
    border-color: rgba(255, 255, 255, 0.1);
}

/* ---- Dashboard ---- */
.dashboard-section {
    padding-top: calc(var(--navbar-height) + 2rem);
    min-height: 100vh;
    background: var(--krah-gray);
}

.dashboard-card {
    background: var(--krah-white);
    border-radius: 16px;
    border: 1px solid #E8EEF3;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.dashboard-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

/* ---- Auth Pages ---- */
.auth-section {
    padding-top: calc(var(--navbar-height) + 3rem);
    min-height: 100vh;
    background: var(--krah-sky);
}

.auth-card {
    background: var(--krah-white);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    max-width: 450px;
    margin: 0 auto;
}

.auth-card input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.auth-card select,
.auth-card textarea {
    display: block;
    width: 100%;
    padding: .375rem .75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--krah-text);
    appearance: none;
    background-color: var(--krah-white);
    background-clip: padding-box;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}

.auth-card input:focus,
.auth-card select:focus,
.auth-card textarea:focus {
    border-color: var(--krah-blue-light);
    box-shadow: 0 0 0 .25rem rgba(33, 150, 243, 0.25);
    outline: 0;
}

/* ---- Buttons ---- */
.btn-primary {
    background: var(--krah-gradient);
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
}

.btn-primary:hover {
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.35);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-color: var(--krah-blue);
    color: var(--krah-blue);
    border-radius: 8px;
    font-weight: 500;
}

.btn-outline-primary:hover {
    background: var(--krah-blue);
    border-color: var(--krah-blue);
}

/* ---- General Page Section (for sub-pages) ---- */
.page-section {
    padding-top: calc(var(--navbar-height) + 2rem);
    min-height: 60vh;
}

.page-hero {
    background: var(--krah-gradient);
    padding: calc(var(--navbar-height) + 3rem) 0 3rem;
    color: var(--krah-white);
    margin-bottom: 3rem;
}

/* ---- Scroll Animations ---- */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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