/* ===== Variables CSS ===== */
:root {
    --primary-dark: #0f0f0f;
    --secondary-dark: #1a1a1a;
    --tertiary-dark: #252525;
    --accent-color: #00d4ff;
    --accent-secondary: #00ff88;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #333333;
    --transition: all 0.3s ease;
}

/* ===== Reset Global ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--primary-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Navbar ===== */
.navbar {
    background-color: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(0, 255, 136, 0.1), transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

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

.btn {
    padding: 0.85rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    display: inline-block;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: var(--primary-dark);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 212, 255, 0.5);
}

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

.btn-secondary:hover {
    background-color: var(--accent-color);
    color: var(--primary-dark);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.gradient-box {
    width: 400px;
    height: 400px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 18px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 255, 136, 0.2));
    border-radius: 30px;
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
    overflow: hidden;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.28);
    animation: float 6s ease-in-out infinite;
}

.gradient-box::before {
    content: "";
    position: absolute;
    inset: 14px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    pointer-events: none;
}

.gradient-box img {
    position: relative;
    z-index: 1;
    display: block;
    width: 110%;
    height: 110%;
    border-radius: 22px;
    object-fit: cover;
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.22);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotateZ(0deg);
    }
    50% {
        transform: translateY(-30px) rotateZ(5deg);
    }
}

/* ===== Servicios Section ===== */
.servicios {
    padding: 5rem 2rem;
    background-color: var(--secondary-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.servicios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.servicio-card {
    background-color: var(--tertiary-dark);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.servicio-card:hover {
    border-color: var(--accent-color);
    background-color: rgba(0, 212, 255, 0.05);
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

.servicio-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 255, 136, 0.1));
    border-radius: 12px;
    color: var(--accent-color);
}

.servicio-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
}

.servicio-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.tech-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tech-list li {
    color: var(--accent-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.tech-list li::before {
    content: '▸';
    margin-right: 0.5rem;
    color: var(--accent-color);
}

/* ===== Stats Section ===== */
.stats {
    padding: 4rem 2rem;
    background-color: var(--primary-dark);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== CTA Section ===== */
.cta {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 255, 136, 0.05));
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.cta .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.cta h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--secondary-dark);
    border-top: 1px solid var(--border-color);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--tertiary-dark);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--accent-color);
    color: var(--primary-dark);
    border-color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--secondary-dark);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.5);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

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

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-visual {
        margin-top: 2rem;
    }

    .gradient-box {
        width: 280px;
        height: 280px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

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

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

    .stats .container {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta h2 {
        font-size: 1.8rem;
    }

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

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .cta h2 {
        font-size: 1.3rem;
    }

    .cta p {
        font-size: 0.95rem;
    }
}

/* ===== Chatbot ===== */
.chatbot-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
    transition: var(--transition);
    position: relative;
    color: var(--primary-dark);
}

.chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(0, 212, 255, 0.6);
}

.chat-toggle svg {
    width: 26px;
    height: 26px;
    stroke-width: 2;
}

.close-icon {
    display: none;
}

.chat-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #ff4b4b;
    color: white;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-badge 1.5s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.chat-window {
    width: 360px;
    background-color: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    max-height: 500px;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.chat-window.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

.chat-header {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 255, 136, 0.1));
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--primary-dark);
}

.chat-header h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin: 0;
}

.chat-status {
    font-size: 0.75rem;
    color: var(--accent-secondary);
}

.chat-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.chat-close:hover {
    background-color: rgba(255, 75, 75, 0.15);
    border-color: #ff4b4b;
    color: #ff4b4b;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
}

.chat-msg {
    max-width: 85%;
    animation: msg-in 0.3s ease;
}

@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.chat-msg.bot  { align-self: flex-start; }
.chat-msg.user { align-self: flex-end; }

.chat-msg p {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

.chat-msg.bot p {
    background-color: var(--tertiary-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.chat-msg.bot p a {
    color: var(--accent-color);
    text-decoration: underline;
}

.chat-msg.user p {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: var(--primary-dark);
    font-weight: 500;
    border-bottom-right-radius: 4px;
}

.chat-msg.typing p {
    display: flex;
    gap: 5px;
    align-items: center;
    padding: 0.85rem 1rem;
}

.dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    animation: dot-bounce 1.2s ease-in-out infinite;
    display: inline-block;
}
.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes dot-bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-8px); }
}

.chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.suggestion-btn {
    padding: 0.4rem 0.9rem;
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.suggestion-btn:hover {
    background-color: var(--accent-color);
    color: var(--primary-dark);
}

.chat-input-area {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--tertiary-dark);
    align-items: center;
}

.chat-input-area input {
    flex: 1;
    background: var(--primary-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.65rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.chat-input-area input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
}

.chat-input-area input::placeholder { color: var(--text-secondary); }

.send-btn {
    width: 38px;
    height: 38px;
    min-width: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    transition: var(--transition);
}

.send-btn:hover { transform: scale(1.1); }

.send-btn svg {
    width: 16px;
    height: 16px;
}

@media (max-width: 480px) {
    .chatbot-container {
        bottom: 1rem;
        right: 1rem;
    }
    .chat-window {
        width: calc(100vw - 2rem);
        max-height: 420px;
    }
}