:root {
    --bg-color: #0f111a;
    --card-bg: rgba(25, 28, 41, 0.6);
    --text-main: #f0f2f5;
    --text-muted: #94a3b8;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.5);
    --error: #ef4444;
    --success: #10b981;
    --border: rgba(255, 255, 255, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

.background-decor {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    z-index: -1;
    filter: blur(100px);
    opacity: 0.4;
    animation: pulse 10s infinite alternate;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
    100% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.6; }
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    z-index: 1;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.accent {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    transition: all 0.4s ease;
}

.hidden {
    display: none !important;
}

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

.input-group label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.2rem;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

button {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, background 0.3s, box-shadow 0.3s;
}

.primary-btn {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
    margin-top: 1rem;
}

.primary-btn:hover {
    background: #4f46e5;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

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

.secondary-btn:hover {
    background: rgba(255,255,255,0.05);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.error-msg {
    color: var(--error);
    margin-top: 1rem;
    text-align: center;
    font-size: 0.9rem;
    min-height: 1.2rem;
}

.progress-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-title {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.progress-container {
    width: 100%;
    height: 12px;
    background: rgba(0,0,0,0.3);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), #818cf8);
    border-radius: 6px;
    transition: width 0.3s ease;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.log-window {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    border-radius: 12px;
    height: 180px;
    overflow-y: auto;
    padding: 1rem;
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.log-entry {
    animation: fadeIn 0.3s;
}

.log-entry.success {
    color: var(--success);
}
.log-entry.error {
    color: var(--error);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Scrollbar styles */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.2);
}

.author-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.profile-pic {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

.author-name {
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0;
    letter-spacing: 0.5px;
}

footer {
    margin-top: 3rem;
    text-align: center;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.social-btn {
    text-decoration: none;
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.social-btn.whatsapp {
    background: #25D366;
    color: white;
    border-color: #25D366;
}

.social-btn.whatsapp:hover {
    background: #1ebe5d;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}