:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] {
    --primary-color: #e8f4f8;
    --accent-color: #64b5f6;
    --text-color: #e8f4f8;
    --light-bg: #1a1a1a;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --border-color: #333;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --nav-bg: rgba(18, 18, 18, 0.95);
}

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

body {
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

nav {
    position: fixed;
    width: 100%;
    padding: 1.5rem;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    padding: 0 2px;
}

.logo-text::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.logo:hover .logo-text::after {
    transform: scaleX(1);
}

.nav-links {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-links a {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    color: var(--primary-color);
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

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

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Theme Switcher */
.theme-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 2rem;
}

.theme-toggle {
    position: relative;
    width: 50px;
    height: 30px;
    background: var(--border-color);
    border-radius: 15px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    border: none;
    outline: none;
    margin: 0 8px;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .theme-toggle {
    background: var(--accent-color);
}

[data-theme="dark"] .theme-toggle::before {
    transform: translateX(20px);
    background: var(--primary-color);
}

/* Additional dark theme improvements */
[data-theme="dark"] .service-card h3,
[data-theme="dark"] .service-card p {
    color: var(--text-color);
}

[data-theme="dark"] .consultant-info h3,
[data-theme="dark"] .consultant-info p {
    color: var(--text-color);
}

[data-theme="dark"] .credentials li {
    color: var(--text-color);
}

[data-theme="dark"] .about-content p {
    color: var(--text-color);
}

/* Ensure proper contrast for form placeholders */
[data-theme="dark"] .contact-form input::placeholder,
[data-theme="dark"] .contact-form textarea::placeholder {
    color: #888;
    opacity: 1;
}

[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
    color: #888;
    opacity: 1;
}

.theme-icon {
    font-size: 1.2rem;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.hero {
    height: 100vh;
    background: linear-gradient(rgba(44, 62, 80, 0.85), rgba(0, 0, 0, 0.85)), url('../imgs/bck.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
    animation: backgroundParallax 20s ease-in-out infinite;
}

@keyframes backgroundParallax {
    0%, 100% { 
        background-position: center center;
        background-size: cover;
    }
    50% { 
        background-position: center 60%;
        background-size: 105% 105%;
    }
}

/* Animated background elements */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(52, 152, 219, 0.1) 0%, 
        rgba(44, 62, 80, 0.1) 25%, 
        rgba(52, 152, 219, 0.1) 50%, 
        rgba(44, 62, 80, 0.1) 75%, 
        rgba(52, 152, 219, 0.1) 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease-in-out infinite;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(52, 152, 219, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(44, 62, 80, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(52, 152, 219, 0.1) 0%, transparent 50%);
    animation: floatingOrbs 12s ease-in-out infinite;
    z-index: 1;
}

/* Floating particles */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.particle:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 60%; left: 20%; animation-delay: 1s; }
.particle:nth-child(3) { top: 30%; left: 80%; animation-delay: 2s; }
.particle:nth-child(4) { top: 80%; left: 70%; animation-delay: 3s; }
.particle:nth-child(5) { top: 10%; left: 60%; animation-delay: 4s; }
.particle:nth-child(6) { top: 70%; left: 10%; animation-delay: 5s; }
.particle:nth-child(7) { top: 40%; left: 90%; animation-delay: 0.5s; }
.particle:nth-child(8) { top: 90%; left: 30%; animation-delay: 1.5s; }
.particle:nth-child(9) { top: 15%; left: 40%; animation-delay: 2.5s; }
.particle:nth-child(10) { top: 50%; left: 5%; animation-delay: 3.5s; }

/* Keyframe animations */
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes floatingOrbs {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    33% { 
        transform: translateY(-20px) rotate(120deg);
        opacity: 0.9;
    }
    66% { 
        transform: translateY(10px) rotate(240deg);
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) translateX(0px);
        opacity: 0.6;
    }
    25% { 
        transform: translateY(-20px) translateX(10px);
        opacity: 1;
    }
    50% { 
        transform: translateY(-10px) translateX(-5px);
        opacity: 0.8;
    }
    75% { 
        transform: translateY(-30px) translateX(15px);
        opacity: 0.9;
    }
}

/* Ensure hero content is above animations */
.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    animation: textGlow 3s ease-in-out infinite alternate;
}

.hero-content h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 400;
    opacity: 0.9;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

@keyframes textGlow {
    0% { 
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5), 0 0 20px rgba(52, 152, 219, 0.3);
    }
    100% { 
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5), 0 0 30px rgba(52, 152, 219, 0.6);
    }
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    margin-top: 2rem;
    background: linear-gradient(135deg, white, #f8f9fa);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .cta-button {
    background: linear-gradient(135deg, var(--accent-color), #5a9fd4);
    color: white;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(52, 152, 219, 0.2), transparent);
    transition: left 0.5s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #f8f9fa, white);
}

[data-theme="dark"] .cta-button:hover {
    background: linear-gradient(135deg, #5a9fd4, var(--accent-color));
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5);
}

.cta-button:hover::before {
    left: 100%;
}

.services {
    padding: 5rem 2rem;
    background: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px var(--shadow-color);
    transition: transform 0.3s, background-color 0.3s ease;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-5px);
}

.client-list {
    list-style: none;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #666;
    transition: color 0.3s ease;
}

[data-theme="dark"] .client-list {
    color: #b0b0b0;
}

.client-list li {
    margin: 0.5rem 0;
    padding-left: 1.2rem;
    position: relative;
}

.client-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.consultant {
    padding: 5rem 2rem;
    background: var(--light-bg);
}

.consultant-content {
    max-width: 900px;
    margin: 0 auto;
}

.consultant-profile {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 15px;
    margin-top: 2rem;
    box-shadow: 0 8px 20px var(--shadow-color);
    transition: background-color 0.3s ease;
    border: 1px solid var(--border-color);
}

.consultant-header {
    display: flex;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
}

.consultant-image {
    flex-shrink: 0;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--accent-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.consultant-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.consultant-info {
    flex: 1;
}

.credentials {
    list-style: none;
    margin-top: 1.5rem;
}

.credentials li {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.credentials li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.name-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.about {
    padding: 5rem 2rem;
}

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

.contact {
    padding: 5rem 2rem;
    background: var(--light-bg);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.contact-form button {
    padding: 1rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-form button:hover {
    background: var(--primary-color);
}

[data-theme="dark"] .contact-form button {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 15px rgba(100, 181, 246, 0.3);
}

[data-theme="dark"] .contact-form button:hover {
    background: #5a9fd4;
    box-shadow: 0 6px 20px rgba(100, 181, 246, 0.4);
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.form-status.error a {
    transition: background-color 0.3s ease;
}

.form-status.error a:hover {
    background-color: #128C7E !important;
}

footer {
    padding: 2rem;
    text-align: center;
    background: var(--primary-color);
    color: white;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-weight: 500;
}

[data-theme="dark"] footer {
    background: #1a1a1a;
    color: #e8f4f8;
    border-top: 1px solid var(--border-color);
}

.services h2,
.contact h2,
.consultant h2,
.about h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2.5rem;
    position: relative;
}

.services h2::after,
.contact h2::after,
.consultant h2::after,
.about h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .theme-switcher {
        margin-left: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .name-group {
        grid-template-columns: 1fr;
    }

    .consultant-header {
        flex-direction: column;
        text-align: center;
    }

    .consultant-image {
        width: 150px;
        height: 150px;
        margin: 0 auto 1.5rem;
    }

    .services h2,
    .contact h2,
    .consultant h2,
    .about h2 {
        font-size: 2.2rem;
    }
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}