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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --accent-light: #f472b6;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --border-color: #334155;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-darker);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 50%, var(--bg-darker) 100%);
    overflow: hidden;
}

.background-animation::before,
.background-animation::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    opacity: 0.15;
    animation: float 25s ease-in-out infinite;
    filter: blur(40px);
}

.background-animation::before {
    top: -300px;
    left: -300px;
    animation-delay: 0s;
}

.background-animation::after {
    bottom: -300px;
    right: -300px;
    animation-delay: 12.5s;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.15;
    }
    33% {
        transform: translate(50px, 50px) scale(1.1);
        opacity: 0.2;
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
        opacity: 0.1;
    }
}

/* Particles */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.particles::before,
.particles::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: particle-float 15s linear infinite;
    box-shadow: 
        200px 300px var(--primary-color),
        400px 150px var(--accent-color),
        600px 450px var(--secondary-color),
        800px 200px var(--primary-color),
        1000px 350px var(--accent-color),
        1200px 100px var(--secondary-color),
        1400px 400px var(--primary-color);
}

.particles::after {
    animation-delay: 7.5s;
    animation-duration: 20s;
    box-shadow: 
        150px 250px var(--accent-color),
        350px 500px var(--primary-color),
        550px 300px var(--secondary-color),
        750px 150px var(--accent-color),
        950px 450px var(--primary-color),
        1150px 200px var(--secondary-color),
        1350px 350px var(--accent-color);
}

@keyframes particle-float {
    0% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0;
    }
}

/* Navbar */
.navbar {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
    padding: 1.25rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.navbar:hover {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.5));
    animation: logo-pulse 3s ease-in-out infinite;
    transition: filter 0.3s ease;
}

.logo-link:hover .logo {
    filter: drop-shadow(0 0 15px rgba(99, 102, 241, 0.8));
}

@keyframes logo-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.8));
    }
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.2), transparent);
    transition: left 0.5s ease;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-link:hover::after {
    width: calc(100% - 2rem);
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-color: var(--primary-color);
}

/* Footer */
.footer {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    margin-top: 4rem;
    text-align: center;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

.footer-divider {
    color: var(--text-muted);
}

.footer-shadow {
    color: var(--secondary-color);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 180px);
    padding: 2rem;
    position: relative;
}

/* Hero Section */
.hero-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-animation {
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.hero-logo {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    animation: heroLogoFloat 4s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
}

@keyframes heroLogoFloat {
    0%, 100% {
        transform: translateY(0px) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

/* Application Cards */
.application-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.app-card {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.app-card:hover::before {
    opacity: 1;
}

.app-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    animation: iconBounce 2s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

@keyframes iconBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.card-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
    position: relative;
    z-index: 1;
}

.card-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 1;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.card-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.card-button:hover::before {
    width: 400px;
    height: 400px;
}

.card-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-glow);
}

.arrow-icon {
    width: 20px;
    height: 20px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.card-button:hover .arrow-icon {
    transform: translateX(5px);
}

/* Form Container */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.form-wrapper {
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3.5rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out;
}

.form-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.form-wrapper:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

.form-header {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.form-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: iconBounce 2s ease-in-out infinite;
}

.form-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
}

/* Form Styles */
.application-form {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    position: relative;
    z-index: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.required {
    color: var(--error-color);
}

.form-input,
.form-textarea {
    background: rgba(15, 23, 42, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    width: 100%;
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--primary-color);
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-actions {
    margin-top: 1rem;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1.25rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.submit-btn:hover::before {
    width: 400px;
    height: 400px;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(-1px);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 10px;
    position: relative;
    z-index: 1;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.submit-btn.loading .btn-text {
    opacity: 0.7;
}

.submit-btn.loading .btn-loader {
    display: inline-block;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.modal.active {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: bold;
}

.success-icon {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    animation: successPulse 0.6s ease-out;
}

.error-icon {
    background: linear-gradient(135deg, var(--error-color), #dc2626);
    color: white;
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-message {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.modal-close {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.modal-close:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .application-cards {
        grid-template-columns: 1fr;
    }

    .form-wrapper {
        padding: 2rem;
    }

    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: space-between;
    }
}