:root {
    --bg-dark: #0a0a0f;
    --bg-panel: rgba(20, 20, 30, 0.6);
    --primary: #ff2a5f; /* A vibrant pink/red for the "Kiss" vibe */
    --primary-hover: #ff003c;
    --text-main: #ffffff;
    --text-muted: #a0a0b0;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

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

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 20s infinite alternate ease-in-out;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,42,95,0.4) 0%, rgba(10,10,15,0) 70%);
}

.orb-2 {
    bottom: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(60,42,255,0.3) 0%, rgba(10,10,15,0) 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(100px, 50px) scale(1.2); }
}

/* Typography & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

h1, h2, h3, h4, .logo {
    font-family: 'Outfit', sans-serif;
}

/* Navigation */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: rgba(10, 10, 15, 0.4);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo span {
    color: var(--primary);
}

nav a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--primary);
}

/* Buttons */
button {
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #d91645);
    color: white;
    padding: 0.6rem 1.5rem;
    box-shadow: 0 4px 15px rgba(255, 42, 95, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 42, 95, 0.6);
}

.btn-primary.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.5rem;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-icon {
    background: transparent;
    color: var(--text-muted);
    padding: 0.5rem;
}

.btn-icon:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 6rem 0 4rem;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero h1 span {
    background: linear-gradient(to right, #ff2a5f, #ff7a2a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Tool Section */
.tool-section {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.state-container {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--glass-shadow);
    transition: opacity 0.5s ease, transform 0.5s ease;
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.state-container.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Upload State */
.drop-zone {
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 4rem 2rem;
    text-align: center;
    transition: all 0.3s;
}

.drop-zone.dragover {
    border-color: var(--primary);
    background: rgba(255, 42, 95, 0.05);
}

.drop-icon {
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.drop-zone h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.drop-zone p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.hidden-input {
    display: none;
}

/* Analyzing State */
#analyzing-state {
    text-align: center;
}

.loader {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    margin-top: 2rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), #ff7a2a);
    transition: width 0.3s ease;
}

/* Result State */
.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.script-content {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 2rem;
    font-size: 1rem;
    line-height: 1.8;
    color: #e0e0e0;
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.script-content h4 {
    color: var(--primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.script-content h4:first-child {
    margin-top: 0;
}

.script-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.cta-section {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(180deg, rgba(255,42,95,0.05) 0%, rgba(255,42,95,0) 100%);
    border-radius: 12px;
    border: 1px solid rgba(255, 42, 95, 0.1);
}

.cta-section h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.cta-section p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.cta-section button {
    margin: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .top-nav {
        flex-direction: column;
        gap: 1rem;
    }
    nav a {
        margin: 0 1rem;
    }
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: rgba(15, 15, 20, 0.85);
    border: 1px solid rgba(255, 42, 95, 0.2);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(255, 42, 95, 0.1);
    border-radius: 24px;
    width: 90%;
    max-width: 500px;
    position: relative;
    padding: 3.5rem 3rem;
    transform: scale(0.95) translateY(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.close-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-btn:hover {
    color: var(--text-main);
    background: var(--primary);
    border-color: var(--primary);
    transform: rotate(90deg);
}

.modal-content h2 {
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.modal-content p {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: #e0e0e0;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 42, 95, 0.05);
    box-shadow: 0 0 0 4px rgba(255, 42, 95, 0.1);
}