/* ===========================================
   1. FC KÖLN - Base Styles
   "Spürbar anders"
   Brand: Rot (#ED1C24) + Schwarz (#000000) + Weiß (#FFFFFF)
   =========================================== */

/* ===========================================
   CSS Custom Properties
   =========================================== */
:root {
    /* FC Köln Primärfarben */
    --fc-primary: #ED1C24;
    --fc-primary-hover: #C81820;
    --fc-primary-light: #FF3B42;
    
    /* Kernfarben */
    --fc-black: #000000;
    --fc-white: #FFFFFF;
    
    /* Grautöne */
    --fc-gray-dark: #333333;
    --fc-gray-medium: #666666;
    --fc-gray-light: #F5F5F5;
    --fc-gray-border: #E0E0E0;
    
    /* Status */
    --fc-success: #28A745;
    --fc-error: #C81820;
    
    /* Typography - Modena1948 Fallbacks */
    --font-condensed: 'Barlow Condensed', 'Oswald', sans-serif;
    --font-body: 'Barlow', 'Open Sans', sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3rem;
    --text-hero: 4rem;
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
    
    /* Line Heights */
    --leading-tight: 1.1;
    --leading-snug: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    
    /* Letter Spacing */
    --tracking-wide: 0.0625rem;
    --tracking-wider: 0.1em;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-30: 7.5rem;
    
    /* Layout */
    --container-max: 1280px;
    --container-padding: 1.375rem;
    --header-height: 80px;
    
    /* Border Radius - FC nutzt stark gerundete Elemente */
    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--fc-black);
    background-color: var(--fc-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a {
    color: var(--fc-primary);
    text-decoration: underline;
    text-underline-offset: 5px;
    transition: var(--transition);
}

a:hover {
    color: var(--fc-primary-hover);
}

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

ul, ol {
    list-style: none;
}

/* ===========================================
   Typography - FC Style
   Headlines: Condensed, Black, UPPERCASE
   =========================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-condensed);
    font-weight: var(--font-black);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    line-height: var(--leading-tight);
    color: var(--fc-black);
}

/* ===========================================
   Layout
   =========================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2.5rem;
    }
}

.main-content {
    flex: 1;
}

/* ===========================================
   HEADER - FC Style mit rotem Akzent
   =========================================== */
.site-header {
    background-color: var(--fc-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

/* Roter Top-Stripe wie auf fc.de */
.site-header::before {
    content: '';
    display: block;
    height: 4px;
    background-color: var(--fc-primary);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

/* Logo */
.header-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header-logo img {
    height: 56px;
    width: auto;
}

/* Navigation */
.header-nav {
    display: none;
    flex: 1;
    justify-content: center;
}

@media (min-width: 768px) {
    .header-nav {
        display: flex;
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-list > u-signed-in {
    display: contents;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--fc-black);
    font-family: var(--font-condensed);
    font-weight: var(--font-bold);
    font-size: var(--text-sm);
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: var(--tracking-wide);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--fc-primary);
    background-color: var(--fc-gray-light);
}

.nav-link.is-active {
    color: var(--fc-primary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Auth Container - beide States übereinander */
.header-auth {
    display: flex;
    align-items: center;
}

/* SDK Wrapper-Elemente transparent machen */
.header-auth u-signed-in,
.header-auth u-signed-out,
.nav-list u-signed-in {
    display: contents;
}

/* Auth Icons Container */
.header-auth-icons {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Icon Button Base */
.header-icon-btn {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--fc-black);
    border-radius: var(--radius-full);
    transition: var(--transition);
    text-decoration: none;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    flex-shrink: 0;
}

.header-icon-btn:hover {
    color: var(--fc-primary);
    background-color: var(--fc-gray-light);
}

.header-icon-btn svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: var(--fc-black);
    border-radius: var(--radius-full);
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* ===========================================
   BUTTONS - FC Köln Style
   Rounded Full, Black Weight, Uppercase
   =========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-condensed);
    font-size: var(--text-lg);
    font-weight: var(--font-black);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    text-decoration: none;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn:active {
    transform: translateY(2px);
}

/* Primary: Roter Hintergrund */
.btn-primary {
    background-color: var(--fc-primary);
    color: var(--fc-white);
    border-color: var(--fc-primary);
}

.btn-primary:hover {
    background-color: var(--fc-primary-hover);
    border-color: var(--fc-primary-hover);
    transform: translateY(-2px);
}

/* Secondary: Schwarzer Outline */
.btn-secondary {
    background-color: transparent;
    color: var(--fc-black);
    border-color: var(--fc-black);
}

.btn-secondary:hover {
    background-color: var(--fc-black);
    color: var(--fc-white);
}

/* Ghost: Weißer Outline (für dunkle Hintergründe) */
.btn-ghost {
    background-color: transparent;
    color: var(--fc-white);
    border-color: var(--fc-white);
}

.btn-ghost:hover {
    background-color: var(--fc-white);
    color: var(--fc-black);
}

/* Button mit Icon-Pfeil */
.btn-icon-right svg {
    width: 20px;
    height: 20px;
    transition: transform 0.2s ease;
}

.btn-icon-right:hover svg {
    transform: translateX(4px);
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--text-base);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--text-xl);
}

/* ===========================================
   FOOTER - FC Style
   =========================================== */
.site-footer {
    background-color: var(--fc-black);
    color: var(--fc-white);
    margin-top: auto;
}

/* Roter Top-Stripe */
.site-footer::before {
    content: '';
    display: block;
    height: 4px;
    background-color: var(--fc-primary);
}

.footer-main {
    padding: var(--space-12) 0;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 2fr 1fr;
        align-items: start;
    }
}

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

@media (min-width: 768px) {
    .footer-brand {
        text-align: left;
    }
}

.footer-logo img {
    height: 80px;
    width: auto;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .footer-logo img {
        margin: 0;
    }
}

.footer-slogan {
    font-family: var(--font-condensed);
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--fc-gray-medium);
    margin-top: var(--space-3);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .footer-nav {
        justify-content: center;
    }
}

.footer-link {
    font-family: var(--font-condensed);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--fc-white);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
}

@media (min-width: 768px) {
    .footer-social {
        justify-content: flex-end;
    }
}

.footer-social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fc-white);
    border: 2px solid var(--fc-gray-dark);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: var(--transition);
}

.footer-social-link:hover {
    color: var(--fc-primary);
    border-color: var(--fc-primary);
}

.footer-social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    border-top: 1px solid var(--fc-gray-dark);
    padding: var(--space-6) 0;
}

.footer-bottom-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--fc-gray-medium);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal-link {
    font-size: var(--text-sm);
    color: var(--fc-gray-medium);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ===========================================
   UNIDY SDK COMPONENT STYLES
   =========================================== */

/* Form Fields */
u-field::part(field_label) {
    display: block;
    font-family: var(--font-condensed);
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--fc-black);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
}

u-field::part(input_field),
u-field::part(select_field),
u-field::part(textarea_field) {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--fc-black);
    background-color: var(--fc-white);
    border: 2px solid var(--fc-gray-border);
    border-radius: var(--radius-lg);
    outline: none;
    transition: var(--transition);
}

u-field::part(input_field):focus,
u-field::part(select_field):focus,
u-field::part(textarea_field):focus {
    border-color: var(--fc-primary);
    box-shadow: 0 0 0 3px rgba(237, 28, 36, 0.1);
}

u-field::part(required-indicator) {
    color: var(--fc-primary);
    margin-left: var(--space-1);
}

/* Submit & Logout Buttons */
u-submit-button::part(button),
u-logout-button::part(button) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-condensed);
    font-size: var(--text-lg);
    font-weight: var(--font-black);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    background-color: var(--fc-primary);
    color: var(--fc-white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

u-submit-button::part(button):hover,
u-logout-button::part(button):hover {
    background-color: var(--fc-primary-hover);
    transform: translateY(-2px);
}

/* Newsletter Checkbox */
u-newsletter-checkbox::part(checkbox) {
    width: 20px;
    height: 20px;
    accent-color: var(--fc-primary);
}

/* Flash Messages */
u-flash-message::part(success) {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--fc-success);
    border: 2px solid var(--fc-success);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-weight: var(--font-medium);
}

u-flash-message::part(error) {
    background-color: rgba(200, 24, 32, 0.1);
    color: var(--fc-error);
    border: 2px solid var(--fc-error);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-weight: var(--font-medium);
}

/* ===========================================
   UTILITIES
   =========================================== */
.text-primary {
    color: var(--fc-primary);
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}