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

:root {
    --purple-dark: #1a0b2e;
    --purple-medium: #2d1b4e;
    --purple-light: #4a2c7a;
    --yellow-primary: #fbbf24;
    --yellow-dark: #f59e0b;
    --white: #ffffff;
    --gray-light: #e5e7eb;
    --gray-medium: #9ca3af;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a0b2e 0%, #2d1b4e 50%, #1a0b2e 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--white);
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 11, 46, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    border-bottom: 1px solid rgba(251, 191, 36, 0.2);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2em;
    font-weight: bold;
    color: var(--yellow-primary);
}

.logo-icon {
    font-size: 1.5em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.visitor-counter {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    color: var(--yellow-primary);
}

.visitor-icon {
    font-size: 1.1em;
}

.visitor-text {
    white-space: nowrap;
}

.nav-btn {
    background: var(--yellow-primary);
    color: var(--purple-dark);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: bold;
}

.nav-btn:hover {
    background: var(--yellow-dark);
    color: var(--purple-dark);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 40px 60px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-size: 5em;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--yellow-primary);
    letter-spacing: -2px;
    text-shadow: 0 4px 20px rgba(251, 191, 36, 0.3);
}

.hero-subtitle {
    font-size: 1.5em;
    color: var(--yellow-primary);
    margin-bottom: 30px;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--gray-light);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

.penguin-character {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    filter: drop-shadow(0 20px 60px rgba(251, 191, 36, 0.3));
    animation: float 3s ease-in-out infinite;
}

.penguin-fallback {
    font-size: 200px;
    filter: drop-shadow(0 20px 60px rgba(251, 191, 36, 0.3));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Buttons */
.btn {
    padding: 14px 32px;
    font-size: 1em;
    font-weight: bold;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: inherit;
}

.btn-primary {
    background: var(--yellow-primary);
    color: var(--purple-dark);
}

.btn-primary:hover:not(:disabled) {
    background: var(--yellow-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(251, 191, 36, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--purple-light);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--purple-light);
    border-color: var(--purple-light);
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 40px;
}

/* Section Titles */
.section-title {
    font-size: 3em;
    font-weight: 900;
    color: var(--yellow-primary);
    margin-bottom: 60px;
    text-align: center;
}

/* Features Section */
.features {
    background: rgba(45, 27, 78, 0.3);
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-card {
    background: rgba(26, 11, 46, 0.6);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(251, 191, 36, 0.2);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--yellow-primary);
    box-shadow: 0 20px 60px rgba(251, 191, 36, 0.2);
}

.feature-icon {
    font-size: 4em;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5em;
    color: var(--yellow-primary);
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--gray-light);
    line-height: 1.6;
}

/* Monitor Section */
.monitor-section {
    padding: 100px 0;
}

.monitor-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.camera-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.video-container {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(251, 191, 36, 0.3);
}

#video {
    width: 100%;
    height: auto;
    display: block;
    background: #1a1a1a;
}

.status-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
}

.status-indicator {
    padding: 12px 20px;
    border-radius: 25px;
    background: rgba(26, 11, 46, 0.9);
    color: white;
    font-weight: bold;
    font-size: 0.9em;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.status-indicator.compliant {
    background: rgba(34, 197, 94, 0.9);
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.5);
}

.status-indicator.violation {
    background: rgba(239, 68, 68, 0.9);
    border-color: rgba(239, 68, 68, 0.5);
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
    animation: pulse 1s infinite;
}

.status-indicator.checking {
    background: rgba(251, 191, 36, 0.9);
    border-color: rgba(251, 191, 36, 0.5);
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.settings-section,
.status-section {
    background: rgba(26, 11, 46, 0.6);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.settings-section h3,
.status-section h3 {
    font-size: 1.5em;
    margin-bottom: 20px;
    color: var(--yellow-primary);
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--gray-light);
}

.setting-item input[type="number"] {
    width: 100%;
    padding: 12px;
    background: rgba(45, 27, 78, 0.5);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 8px;
    font-size: 1em;
    color: var(--white);
    transition: border-color 0.3s ease;
}

.setting-item input[type="number"]:focus {
    outline: none;
    border-color: var(--yellow-primary);
}

.setting-item input[type="checkbox"] {
    margin-right: 10px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--yellow-primary);
}

.status-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    background: rgba(45, 27, 78, 0.5);
    border-radius: 10px;
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.info-label {
    font-weight: 600;
    color: var(--gray-medium);
}

.info-item span:last-child {
    color: var(--white);
    font-weight: 600;
}

/* About Section */
.about {
    background: rgba(45, 27, 78, 0.3);
    padding: 100px 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--gray-light);
    margin-bottom: 30px;
}

/* Alert Banner */
.alert-banner {
    position: fixed;
    top: -100px;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 20px;
    text-align: center;
    font-size: 1.2em;
    font-weight: bold;
    z-index: 2000;
    transition: top 0.5s ease;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.4);
}

.alert-banner.show {
    top: 0;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.alert-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.alert-icon {
    font-size: 1.5em;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        order: -1;
    }

    .monitor-content {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 3.5em;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
        flex-direction: column;
        gap: 15px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .visitor-counter {
        font-size: 0.85em;
        padding: 6px 12px;
    }

    .hero {
        padding: 140px 20px 40px;
    }

    .hero-title {
        font-size: 2.5em;
    }

    .hero-subtitle {
        font-size: 1.2em;
    }

    .container {
        padding: 60px 20px;
    }

    .section-title {
        font-size: 2em;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}