:root {
    --primary-color: #6366f1;
    --accent-color: #00c2ff;
    --bg-dark: #0f172a;
    --card-dark: rgba(30, 41, 59, 0.7);
    --text-white: #f8fafc;
    --text-dim: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.web-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Background Blobs */
.background-blob {
    position: fixed;
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(0, 194, 255, 0.05) 100%);
    filter: blur(80px);
    z-index: -1;
    border-radius: 50%;
}

/* Navigation */
.web-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 64px;
    height: 80px;
    object-fit: contain;
}

.logo-text {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: white;
}

.register-link {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
}

/* Hero Section */
.hero-section {
    display: flex;
    flex-direction: column;
    text-align: center;
    gap: 2rem;
    padding-top: 6rem;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-title .highlight {
    color: var(--accent-color);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-dim);
    margin: 0 auto 2.5rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0.8rem 1.8rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
    text-decoration: none;
}

.btn.primary {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn.secondary {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid var(--glass-border);
}

.btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn.large {
    padding: 1rem 2.2rem;
    font-size: 1.05rem;
}

.btn.full-width {
    width: 100%;
}

/* Visuals */
.mockup-frame {
    background: var(--card-dark);
    padding: 12px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
}

.mockup-img {
    width: 100%;
    border-radius: 12px;
    display: block;
}

/* Registration Form */
.form-section {
    padding: 4rem 0;
    display: flex;
    justify-content: center;
}

.glass-form-card {
    background: var(--card-dark);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 3rem;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.form-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1rem;
    border-radius: 10px;
    color: white;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--primary-color);
    background: rgba(15, 23, 42, 0.8);
}

.file-upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload-area:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.file-upload-area .upload-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

.file-upload-area p {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.file-preview {
    position: relative;
    margin-top: 1rem;
    border-radius: 12px;
    overflow: hidden;
}

.file-preview img {
    width: 100%;
    display: block;
}

.btn-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-remove:hover {
    background: #ef4444;
}

.status-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 10px;
    font-size: 0.9rem;
    display: none;
}

.status-message.success {
    display: block;
    background: rgba(34, 197, 94, 0.1);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.status-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Modal Overlay Appearance */
.receive-section {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-card {
    background: var(--bg-dark);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.modal-card h2 {
    margin-bottom: 0.5rem;
}

.modal-card p {
    color: var(--text-dim);
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.input-group input {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.5rem;
    padding: 0.8rem;
    border-radius: 12px;
    background: #1e293b;
    border: 1px solid var(--glass-border);
    color: white;
    outline: none;
}

.btn-text {
    background: none;
    border: none;
    color: var(--text-dim);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-text:hover {
    color: white;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 2rem;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
}