/* Custom CSS for YoleraMarkt Website */
/* Inspired by Monday.com design system */

/* CSS Custom Properties */
:root {
    --neon-yellow: #FFFF00;
    --monday-yellow: #FFCB00;
    --monday-purple: #6C5CE7;
    --monday-blue: #0086FF;
    --dark-primary: #1A1A1A;
    --dark-secondary: #2D2D2D;
    --light-gray: #F8F9FA;
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.4s ease-in-out;
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-primary);
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--dark-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.025em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: #4a5568;
}

/* Custom Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounceGentle {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Utility Classes */
.animate-fade-in {
    animation: fadeIn var(--transition-normal) ease-in-out;
}

.animate-slide-up {
    animation: slideUp var(--transition-normal) ease-out;
}

.animate-bounce-gentle {
    animation: bounceGentle var(--transition-normal) ease-out;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Navigation Styles */
nav {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 203, 0, 0.1);
    transition: all var(--transition-fast);
}

nav.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-medium);
}

/* Button Styles */
.btn-primary {
    background: linear-gradient(135deg, var(--monday-yellow) 0%, var(--neon-yellow) 100%);
    color: var(--dark-primary);
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    transform: translateY(0);
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-medium);
    background: linear-gradient(135deg, var(--neon-yellow) 0%, var(--monday-yellow) 100%);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
    box-shadow: var(--shadow-light);
}

.btn-secondary {
    background-color: transparent;
    color: var(--monday-yellow);
    border: 2px solid var(--monday-yellow);
    font-weight: 600;
    padding: 10px 22px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--monday-yellow);
    color: var(--dark-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-light);
}

/* Form Styles */
.form-input {
    width: 100%;
    padding: 16px;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background-color: #ffffff;
    font-family: inherit;
}

.form-input:focus {
    outline: none;
    border-color: var(--monday-yellow);
    box-shadow: 0 0 0 3px rgba(255, 203, 0, 0.1);
    background-color: #ffffff;
}

.form-input:invalid {
    border-color: #f56565;
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--dark-primary);
    margin-bottom: 8px;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Card Styles */
.card {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-fast);
    border: 1px solid rgba(255, 203, 0, 0.1);
}

.card:hover {
    box-shadow: var(--shadow-heavy);
    transform: translateY(-4px);
    border-color: rgba(255, 203, 0, 0.2);
}

.card-elevated {
    box-shadow: var(--shadow-medium);
}

.card-elevated:hover {
    box-shadow: var(--shadow-heavy);
    transform: translateY(-6px);
}

/* Section Styles */
.section-padding {
    padding: 5rem 0;
}

.section-padding-sm {
    padding: 3rem 0;
}

.section-padding-lg {
    padding: 7rem 0;
}

/* Hero Section Specific */
.hero-gradient {
    background: linear-gradient(
        135deg,
        var(--dark-primary) 0%,
        var(--dark-secondary) 50%,
        #374151 100%
    );
    position: relative;
    overflow: hidden;
}

.hero-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        ellipse at top right,
        rgba(255, 203, 0, 0.15) 0%,
        transparent 50%
    );
}

.hero-gradient::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        transparent 0%,
        rgba(255, 255, 0, 0.05) 50%,
        transparent 100%
    );
}

/* Testimonial Cards */
.testimonial-card {
    background: linear-gradient(145deg, #ffffff 0%, var(--light-gray) 100%);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--monday-yellow), var(--neon-yellow));
}

.testimonial-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

/* Certificate Section */
.certificate-preview {
    background: linear-gradient(145deg, #ffffff 0%, #f7fafc 100%);
    border: 4px solid var(--monday-yellow);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-fast);
    position: relative;
}

.certificate-preview::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--monday-yellow);
    border-radius: 50%;
    opacity: 0.3;
}

.certificate-preview:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-heavy);
}

/* Instructor Cards */
.instructor-card {
    text-align: center;
    background-color: #ffffff;
    border-radius: var(--border-radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.instructor-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 0;
    height: 4px;
    background: linear-gradient(to right, var(--monday-yellow), var(--neon-yellow));
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

.instructor-card:hover::before {
    width: 60px;
}

.instructor-card:hover {
    box-shadow: var(--shadow-heavy);
    transform: translateY(-4px);
}

.instructor-avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--monday-yellow) 0%, var(--neon-yellow) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-fast);
}

.instructor-card:hover .instructor-avatar {
    transform: scale(1.05);
    box-shadow: var(--shadow-heavy);
}

/* Social Links */
.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-gray);
    color: var(--monday-yellow);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--monday-yellow);
    color: var(--dark-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

/* Features List */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    transition: all var(--transition-fast);
}

.feature-item:hover {
    transform: translateX(8px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--monday-yellow) 0%, var(--neon-yellow) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    color: var(--dark-primary);
    font-weight: 600;
    box-shadow: var(--shadow-light);
}

/* Footer Styles */
footer {
    background: linear-gradient(135deg, var(--dark-primary) 0%, #000000 100%);
}

.footer-link {
    color: #a0aec0;
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

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

.footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--monday-yellow);
    transition: width var(--transition-fast);
}

.footer-link:hover::after {
    width: 100%;
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--monday-yellow);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success/Error States */
.success {
    background-color: #c6f6d5;
    border-color: #38a169;
    color: #22543d;
}

.error {
    background-color: #fed7d7;
    border-color: #e53e3e;
    color: #742a2a;
}

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

/* Focus States */
*:focus {
    outline: 2px solid var(--monday-yellow);
    outline-offset: 2px;
}

button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 203, 0, 0.3);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --light-gray: #2d3748;
    }
    
    .card {
        background-color: #2d3748;
        color: #ffffff;
    }
    
    .testimonial-card {
        background: linear-gradient(145deg, #2d3748 0%, #1a202c 100%);
    }
    
    .instructor-card {
        background-color: #2d3748;
        color: #ffffff;
    }
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .hero-gradient {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
    
    h1 {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .card {
        padding: 24px;
    }
    
    .instructor-card {
        padding: 24px;
    }
    
    .certificate-preview {
        padding: 24px;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .section-padding-lg {
        padding: 4rem 0;
    }
}

/* Ultra-wide Screen Optimizations */
@media (min-width: 1440px) {
    .hero-gradient {
        min-height: 90vh;
    }
    
    .section-padding-lg {
        padding: 8rem 0;
    }
}

/* Print Styles */
@media print {
    .hero-gradient,
    nav,
    footer {
        background: none !important;
        color: black !important;
    }
    
    .btn-primary,
    .btn-secondary {
        border: 1px solid black !important;
        background: none !important;
        color: black !important;
    }
}