@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;600;700;800&display=swap');

:root {
    --bg-dark: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.8);
    --border-glass: rgba(0, 0, 0, 0.08);
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --primary-grad: linear-gradient(135deg, #7c3aed, #4f46e5);
    --accent-grad: linear-gradient(135deg, #fbbf24, #d97706);
    --glow-violet: rgba(124, 58, 237, 0.15);
    --font-head: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-x: hidden;
    position: relative;
}

/* Background Glowing Orbs */
body::before, body::after {
    content: '';
    position: absolute;
    width: 35vw;
    height: 35vw;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.5;
    pointer-events: none;
}

body::before {
    background: #e0e7ff;
    top: -10%;
    left: -10%;
}

body::after {
    background: #e0f2fe;
    bottom: -10%;
    right: -10%;
}

/* Header */
header {
    width: 100%;
    max-width: 750px;
    margin: 0 auto;
    padding: 2rem 1.5rem 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-head);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(to right, #0f172a, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    background: var(--accent-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Contact Actions in Header */
.contact-actions {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.15rem;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: #ffffff;
}

/* Default state - Actual Brand Colors */
.contact-link.whatsapp {
    background: #25d366;
    border: 1px solid #25d366;
    box-shadow: 0 4px 10px rgba(37, 211, 102, 0.2);
}

.contact-link.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    border: 1px solid transparent;
    box-shadow: 0 4px 10px rgba(204, 35, 102, 0.2);
}

.contact-link.call {
    background: #007bff;
    border: 1px solid #007bff;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.2);
}

/* Hover State - Dynamic Interactive Animations */
.contact-link:hover {
    transform: translateY(-5px) scale(1.15) rotate(8deg);
    color: #ffffff;
}

.contact-link.whatsapp:hover {
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.45);
}

.contact-link.instagram:hover {
    box-shadow: 0 8px 20px rgba(204, 35, 102, 0.45);
}

.contact-link.call:hover {
    box-shadow: 0 8px 20px rgba(0, 123, 255, 0.45);
}

/* Main Container */
.container {
    width: 100%;
    /* max-width: 1200px; */
    margin: 0 auto;
    /* padding: 0 1.5rem 3rem 1.5rem; */
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-grow: 1;
}

.landing-wrapper {
    width: 100%;
    /* max-width: 750px; */
    display: flex;
    flex-direction: column;
    gap: 2rem;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Standalone Hero Banner Image Wrapper (No Text) */
.hero-image-wrapper {
    width: 100%;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    aspect-ratio: 16 / 7;
}

.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.hero-image-wrapper:hover img {
    transform: scale(1.02);
}

/* Registration Form Card below Image */
.form-card {
    width: 50%;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 28px;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    margin: 0 auto;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-family: var(--font-head);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #c084fc, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Form Styling */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1.4rem;
    top: 50%;
    transform: translateY(-50%);
    color: #64748b;
    font-size: 1.15rem;
    pointer-events: none;
    transition: all 0.3s ease;
}

.form-control {
    width: 100%;
    padding: 1.1rem 1rem 1.1rem 3.2rem;
    font-family: var(--font-body);
    font-size: 1.05rem;
    background: #ffffff;
    border: 2px solid rgba(99, 102, 241, 0.15);
    border-radius: 50px;
    color: var(--text-primary);
    outline: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 54px;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
}

.form-control::placeholder {
    color: #94a3b8;
}

.form-control:hover {
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.05);
}

.form-control:focus {
    background: #ffffff;
    border-color: #7c3aed;
    box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.12), 0 8px 20px rgba(124, 58, 237, 0.05);
}

.form-control:focus + .input-icon {
    color: #7c3aed;
    transform: translateY(-50%) scale(1.1);
}

/* Centered rectangular Submit Button */
.button-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-top: 1.5rem;
}

.btn-submit {
    width: auto;
    min-width: 160px;
    padding: 0.9rem 2.5rem;
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    background: var(--primary-grad);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.45);
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-submit .spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-width: 300px;
    max-width: 400px;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: var(--text-primary);
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left: 4px solid var(--success);
}

.toast-error {
    border-left: 4px solid var(--error);
}

.toast-icon {
    font-size: 1.2rem;
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error .toast-icon {
    color: var(--error);
}

.toast-message {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    width: 100%;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Category Selector Block */
.category-selector-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 1.25rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
    text-align: center;
}

.category-title {
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-tabs {
    display: flex;
    gap: 1rem;
}

.category-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.category-tab i {
    font-size: 1.4rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.category-tab:hover {
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.02);
    transform: translateY(-2px);
}

.category-tab.active {
    border-color: #7c3aed;
    background: var(--primary-grad);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.25);
}

.category-tab.active i {
    color: #ffffff;
    transform: scale(1.1);
}

/* Toggleable Exhibitor Fields */
.exhibitor-fields {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.exhibitor-fields.show {
    max-height: 500px;
    opacity: 1;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

/* Media Queries */
@media (max-width: 768px) {
    header {
        max-width: 100%;
    }
    .hero-image-wrapper {
        aspect-ratio: 16 / 9;
    }
    .form-card {
        width: 80%;
    }
}

@media (max-width: 576px) {
    header {
        padding: 1.5rem 1rem;
    }
    .container {
        padding: 0 1rem 2rem 1rem;
    }
    .hero-image-wrapper {
        aspect-ratio: 16 / 10;
        border-radius: 12px;
    }
    .form-card {
        width: 100%;
        padding: 1.5rem;
        border-radius: 20px;
    }
    .form-header h2 {
        font-size: 1.5rem;
    }
    .form-control {
        font-size: 0.95rem;
        padding: 1rem 1rem 1rem 3rem;
        height: 48px;
    }
    .input-icon {
        left: 1.2rem;
    }
    .btn-submit {
        width: 100%;
        padding: 0.8rem 2rem;
    }
    .toast-container {
        top: 1rem;
        right: 1rem;
        left: 1rem;
    }
    .toast {
        min-width: 100%;
    }
}