/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    text-decoration: none;
}

.brand-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    text-decoration: none;
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

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

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

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    font-family: var(--font-primary);
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.1rem;
}

/* Ripple effect */
.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: width 0.6s, height 0.6s;
    transform: translate(-50%, -50%);
}

.ripple-effect:active::before {
    width: 300px;
    height: 300px;
}

/* ========== CARDS ========== */
.info-card {
    background: var(--gradient-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-white);
    font-size: 1.5rem;
}

.info-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.info-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

/* ========== FORM ELEMENTS ========== */
.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group label {
    position: absolute;
    left: var(--spacing-lg);
    top: var(--spacing-lg);
    color: var(--text-light);
    transition: all var(--transition-normal);
    pointer-events: none;
    background: var(--bg-card);
    padding: 0 var(--spacing-sm);
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    transform: translateY(-35px) scale(0.85);
    color: var(--primary-color);
}

/* ========== BADGES ========== */
.badge-item {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: all var(--transition-normal);
}

.badge-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.badge-item.ghost {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

/* ========== LANGUAGE PICKER ========== */
.language-picker {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.lang-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.lang-btn img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.lang-btn span {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.lang-btn.active,
.lang-btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.lang-btn.active span {
    color: var(--primary-color);
}

/* ========== CONTACT BUTTONS ========== */
.contact-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-white);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.contact-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.contact-btn.whatsapp { background: linear-gradient(135deg, #25d366, #128c7e); }
.contact-btn.telegram { background: linear-gradient(135deg, #0088cc, #005577); }
.contact-btn.signal { background: linear-gradient(135deg, #3a76f0, #2c5ce6); }
.contact-btn.instagram { background: linear-gradient(135deg, #e4405f, #8a3ab9); }

.contact-btn i {
    font-size: 1.5rem;
}

.contact-btn span {
    font-weight: 600;
    font-size: 0.9rem;
}

/* ========== BACK TO TOP ========== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ========== MATRIX CRT TERMINAL TYPEWRITER EFFECT ========== */
@import url('https://fonts.googleapis.com/css2?family=VT323:wght@400&display=swap');

/* CRT Terminal Background */
.typewrite {
    font-family: 'VT323', 'Courier New', monospace;
    font-size: 1.2em;
    color: #00FF00;
    text-decoration: none;
    position: relative;
    display: inline-block;
    background: #0A0A0A;
    padding: 15px 20px;
    border-radius: 8px;
    border: 2px solid #008000;
    text-shadow: 
        1px 0 0 #FF0000,        /* Red fringe */
        -1px 0 0 #0000FF,       /* Blue fringe */
        0 0 5px #00FF00,        /* Green glow */
        0 0 10px #00FF00,       /* Stronger green glow */
        0 0 15px #008000;       /* Emerald outer glow */
    box-shadow: 
        0 0 20px rgba(0, 255, 0, 0.3),
        inset 0 0 20px rgba(0, 128, 0, 0.1);
    animation: crt-flicker 8s infinite, screen-interference 12s infinite;
}

/* Horizontal Scan Lines */
.typewrite::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 255, 0, 0.03) 2px,
        rgba(0, 255, 0, 0.03) 4px
    );
    pointer-events: none;
    z-index: 1;
    animation: scan-lines-drift 3s linear infinite;
}

/* Matrix Raining Code Background */
.typewrite::after {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: calc(100% + 100px);
    height: calc(100% + 100px);
    background-image: 
        linear-gradient(180deg, transparent 0%, rgba(0, 255, 0, 0.05) 20%, transparent 100%),
        linear-gradient(180deg, transparent 0%, rgba(0, 128, 0, 0.03) 30%, transparent 100%);
    background-size: 20px 60px, 15px 80px;
    background-position: 0 0, 10px 0;
    opacity: 0.6;
    pointer-events: none;
    z-index: -1;
    animation: matrix-rain 15s linear infinite;
}

/* Terminal Cursor */
.typewrite > .wrap {
    position: relative;
    z-index: 2;
}

.typewrite > .wrap::after {
    content: '█';
    color: #00FF00;
    animation: terminal-cursor 1s step-end infinite;
    text-shadow: 
        0 0 5px #00FF00,
        0 0 10px #00FF00;
    margin-left: 2px;
}

/* CRT Screen Effects */
@keyframes crt-flicker {
    0%, 98%, 100% { 
        filter: brightness(1) contrast(1);
        text-shadow: 
            1px 0 0 #FF0000,
            -1px 0 0 #0000FF,
            0 0 5px #00FF00,
            0 0 10px #00FF00,
            0 0 15px #008000;
    }
    1%, 3% { 
        filter: brightness(0.9) contrast(1.1);
        text-shadow: 
            2px 0 0 #FF0000,
            -2px 0 0 #0000FF,
            0 0 3px #00FF00,
            0 0 8px #00FF00,
            0 0 12px #008000;
    }
    2% { 
        filter: brightness(1.1) contrast(0.9);
        text-shadow: 
            1px 0 0 #FF0000,
            -1px 0 0 #0000FF,
            0 0 7px #00FF00,
            0 0 12px #00FF00,
            0 0 18px #008000;
    }
}

@keyframes screen-interference {
    0%, 90%, 100% { 
        background: #0A0A0A;
    }
    91%, 93% { 
        background: #0C0C0C;
    }
    94%, 96% { 
        background: #080808;
    }
}

@keyframes scan-lines-drift {
    0% { transform: translateY(0); }
    100% { transform: translateY(4px); }
}

@keyframes matrix-rain {
    0% { 
        background-position: 0 -60px, 10px -80px;
        opacity: 0.4;
    }
    50% { 
        opacity: 0.6;
    }
    100% { 
        background-position: 0 60px, 10px 80px;
        opacity: 0.4;
    }
}

@keyframes terminal-cursor {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Character-by-character typing animation */
.typewrite .char {
    opacity: 0;
    transform: scale(0.9);
    animation: char-appear 0.1s ease-out forwards;
}

@keyframes char-appear {
    0% {
        opacity: 0;
        transform: scale(0.9);
        text-shadow: 
            2px 0 0 #FF0000,
            -2px 0 0 #0000FF,
            0 0 3px #00FF00;
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
        text-shadow: 
            1px 0 0 #FF0000,
            -1px 0 0 #0000FF,
            0 0 8px #00FF00,
            0 0 12px #00FF00;
    }
    100% {
        opacity: 1;
        transform: scale(1);
        text-shadow: 
            1px 0 0 #FF0000,
            -1px 0 0 #0000FF,
            0 0 5px #00FF00,
            0 0 10px #00FF00,
            0 0 15px #008000;
    }
}

/* Error state (rare red for emphasis) */
.typewrite.error {
    color: #FF0000;
    border-color: #800000;
    text-shadow: 
        1px 0 0 #FFFF00,
        -1px 0 0 #00FFFF,
        0 0 5px #FF0000,
        0 0 10px #FF0000,
        0 0 15px #800000;
    box-shadow: 
        0 0 20px rgba(255, 0, 0, 0.3),
        inset 0 0 20px rgba(128, 0, 0, 0.1);
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.contact-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}