/* ===================================
   FONTS
   =================================== */

@font-face {
    font-family: 'HelveticaNeueLTW01';
    src: url('fonts/HelveticaNeueLTW01_55Roman.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'HelveticaNeueLTW01';
    src: url('fonts/HelveticaNeueLTW01_71488914.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* ===================================
   CSS VARIABLES
   =================================== */

:root {
    --primary-color: #0F05A0;
    --primary-color-dark: #0000CC;
    --white: #FFFFFF;
    --text-color: #1A1A1A;
    --text-gray: var(--text-gray);
    --section-padding: 80px 0;
    --font-official: 'HelveticaNeueLTW01', "Helvetica Neue", Helvetica, Arial, sans-serif;
    --border-radius: 15px;
    --border-radius-large: 30px;
    --transition-standard: 0.3s ease;
    --transition-slow: 0.5s ease;
    --container-max-width: 1200px;
    --event-image-size: 500px;
    --event-grid-gap: 10px;
    --event-grid-padding: 10px;
    --event-grid-image-height: 235px;
    /* 480px = event-image-size (500px) - 2 * event-grid-padding (10px) */
    --event-grid-zoomed-size: 480px;
    /* 2.043 = zoomed-size (480px) / grid-image-height (235px) */
    --event-grid-scale: 2.043;
    --speech-bubble-color: #FFC107;
}

/* ===================================
   RESET & BASE
   =================================== */

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

body {
    font-family: var(--font-official);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   NAVIGATION
   =================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 120px;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: box-shadow var(--transition-standard);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    padding: 20px;
    text-decoration: none;
    transition: padding var(--transition-standard);
}

.nav-logo img {
    height: 79px;
    transition: height var(--transition-standard);
}

.nav-elternrat {
    position: absolute;
    font-size: 12px;
    top: 21px;
    margin-left: 182px;
    font-weight: 400;
    color: var(--primary-color);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    position: relative;
    transition: color var(--transition-standard);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-standard);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 238, 0.7) 0%, rgba(65, 105, 225, 0.7) 100%),
        url(assets/schulhaus-altstetterstrasse.jpg);
    background-size: cover;
    background-position: center top;
    background-attachment: fixed;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(30px);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(30px);
}

.hero-text {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0;
    transform: translateY(30px);
}

.hero-cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--border-radius-large);
    border: 2px solid transparent;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all var(--transition-standard);
    opacity: 0;
    transform: translateY(30px);
}

.hero-cta:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
    z-index: 2;
}

.scroll-indicator span {
    width: 6px;
    height: 10px;
    background: var(--white);
    border-radius: 3px;
    animation: scroll-down 2s infinite;
}

@keyframes scroll-down {

    0%,
    20% {
        transform: translateY(0);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: translateY(20px);
        opacity: 0;
    }
}

/* ===================================
   ABOUT SECTION
   =================================== */

.about {
    padding: var(--section-padding);
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-align: center;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.about-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-standard);
}

.about-image:hover img {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .nav {
        height: 59px !important;
    }

    .nav-logo {
        padding: 10px !important;
    }

    .nav-logo img {
        height: 40px !important;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ===================================
   AGENDA SECTION
   =================================== */

.agenda {
    padding: var(--section-padding);
    background: var(--primary-color);
}

.agenda .section-title,
.agenda .section-subtitle {
    color: var(--white);
    text-align: center;
}

.section-subtitle {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    text-align: center;
}

.calendar-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    padding: 20px;
}

.calendar-container iframe {
    display: block;
}

/* FullCalendar customization */
#calendar {
    font-family: var(--font-official);
}

#calendar .fc-toolbar-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

#calendar .fc-button {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    font-family: var(--font-official);
    text-transform: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    transition: background-color var(--transition-standard);
}

#calendar .fc-button:hover {
    background-color: var(--primary-color-dark);
    border-color: var(--primary-color-dark);
}

#calendar .fc-button:disabled {
    background-color: #CCCCCC;
    border-color: #CCCCCC;
    opacity: 0.5;
}

#calendar .fc-button-active {
    background-color: var(--primary-color-dark);
    border-color: var(--primary-color-dark);
}

#calendar .fc-list-event-time {
    color: var(--text-color);
    vertical-align: top;
    padding-top: 0.75rem;
}

#calendar .fc-list-event-title {
    color: var(--text-color);
    line-height: 1.6;
    padding: 0 0.75rem 0.75rem 0.75rem;
}

#calendar .fc-list-event:hover td {
    background-color: #F5F5F5;
}

#calendar .fc-list-day-cushion {
    background-color: #F0F0F0;
    color: var(--primary-color);
    font-weight: 700;
}

#calendar .fc-list-event-dot {
    border-color: var(--primary-color);
}

#calendar .fc-list-event-graphic {
    display: none;
}

#calendar .fc-event {
    cursor: default;
}

/* ===================================
   TESTIMONIALS SECTION
   =================================== */

.testimonials {
    padding: var(--section-padding);
    background: #f5f5f5;
    position: relative;
    z-index: 10;
}

.testimonials .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-bottom: 4rem;
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-standard), box-shadow var(--transition-standard);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-10px) rotate(0deg) !important;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.testimonial-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    height: 100%;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-gray);
    font-style: italic;
    margin-bottom: 0;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    font-size: 4rem;
    line-height: 1;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: -10px;
    left: -10px;
    font-style: normal;
    font-family: Georgia, serif;
}

.testimonial-content h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    margin-top: auto;
    text-align: right;
}

.cta-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.cta-box h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.cta-box p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius-large);
    font-weight: 600;
    transition: background var(--transition-standard), transform var(--transition-standard);
}

.btn-primary:hover {
    background: var(--primary-color-dark);
    transform: scale(1.05);
}

@media screen and (min-width: 900px) {
    .testimonial-card {
        min-height: 250px;
    }
}

@media (max-width: 900px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   EVENTS SECTION
   =================================== */

.events {
    padding: var(--section-padding);
    background: var(--primary-color);
    overflow: hidden;
    position: relative;
}

.events .section-title,
.events .section-subtitle {
    color: var(--white);
}

.events-header-sticky {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    padding: 0;
    z-index: 10;
    pointer-events: none;
    opacity: 0;
}

.events-scroll-wrapper {
    overflow: hidden;
    padding-top: 170px;
}

.events-scroll-container {
    display: flex;
    gap: 3rem;
    will-change: transform;
    padding: 0 100px;
}

.event-item {
    flex-shrink: 0;
    width: var(--event-image-size);
}

.event-images {
    width: var(--event-image-size);
    height: var(--event-image-size);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--white);
    position: relative;
}

.event-images img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

/* 4-image grid */
.event-images-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--event-grid-gap);
    padding: var(--event-grid-padding);
}

/* 2-image grid - stacked vertically */
.event-images-double {
    display: flex;
    flex-direction: column;
    gap: var(--event-grid-gap);
    padding: var(--event-grid-padding);
}

/* shared grid image wrapper styles */
.grid-image-wrapper {
    position: relative;
    width: 100%;
    height: var(--event-grid-image-height);
    cursor: pointer;
}

.event-images-double .grid-image-wrapper {
    height: var(--event-grid-image-height);
}

.event-images-double img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-images-double .grid-image-wrapper:nth-child(1) img {
    top: 0;
    left: 0;
}

.event-images-double .grid-image-wrapper:nth-child(1):hover img {
    position: absolute;
    top: 0;
    left: 0;
    width: var(--event-grid-zoomed-size);
    height: var(--event-grid-zoomed-size);
    z-index: 100;
    transition: all var(--transition-slow);
}

.event-images-double .grid-image-wrapper:nth-child(2) img {
    bottom: 0;
    left: 0;
    top: auto;
}

.event-images-double .grid-image-wrapper:nth-child(2):hover img {
    position: absolute;
    bottom: 0;
    left: 0;
    top: auto;
    width: var(--event-grid-zoomed-size);
    height: var(--event-grid-zoomed-size);
    z-index: 100;
    transition: all var(--transition-slow);
}

.event-images-grid img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-images-grid .grid-image-wrapper:nth-child(1) img {
    top: 0;
    left: 0;
    transform-origin: top left;
}

.event-images-grid .grid-image-wrapper:nth-child(1):hover img {
    transform: scale(var(--event-grid-scale));
    z-index: 100;
    transition: transform var(--transition-slow);
}

.event-images-grid .grid-image-wrapper:nth-child(2) img {
    top: 0;
    right: 0;
    left: auto;
    transform-origin: top right;
}

.event-images-grid .grid-image-wrapper:nth-child(2):hover img {
    transform: scale(var(--event-grid-scale));
    z-index: 100;
    transition: transform var(--transition-slow);
}

.event-images-grid .grid-image-wrapper:nth-child(3) img {
    bottom: 0;
    left: 0;
    top: auto;
    transform-origin: bottom left;
}

.event-images-grid .grid-image-wrapper:nth-child(3):hover img {
    transform: scale(var(--event-grid-scale));
    z-index: 100;
    transition: transform var(--transition-slow);
}

.event-images-grid .grid-image-wrapper:nth-child(4) img {
    bottom: 0;
    right: 0;
    top: auto;
    left: auto;
    transform-origin: bottom right;
}

.event-images-grid .grid-image-wrapper:nth-child(4):hover img {
    transform: scale(var(--event-grid-scale));
    z-index: 100;
    transition: transform var(--transition-slow);
}

.event-caption {
    color: var(--white);
    margin-top: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    padding: 60px 0 40px;
    background: var(--text-color);
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-section p {
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.contact-link {
    display: inline-block;
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    padding: 10px 20px;
    background: var(--primary-color);
    border-radius: 5px;
    transition: background var(--transition-standard);
    position: relative;
}

.contact-link:hover {
    background: var(--primary-color-dark);
}

.speech-bubble {
    position: absolute;
    top: 100%;
    left: 75%;
    transform: translateX(-50%);
    margin-top: 10px;
    padding: 8px 12px;
    background: var(--speech-bubble-color);
    color: #1A1A1A;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.speech-bubble::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-bottom-color: var(--speech-bubble-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-standard);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}