/* CSS Variables */
:root {
    --primary-color: #87CEEB;
    --primary-dark: #4682B4;
    --primary-light: #E0F6FF;
    --secondary-color: #ffffff;
    --accent-color: #1e90ff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --background-light: #f8fafc;
    --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-strong: 0 16px 48px rgba(0, 0, 0, 0.15);
    --border-radius: 20px;
    --border-radius-small: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.nav-glass {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    color: var(--text-dark);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 100px 0 50px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.float-element {
    position: absolute;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.float-element:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.float-element:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 20%;
    animation-delay: 2s;
}

.float-element:nth-child(3) {
    width: 60px;
    height: 60px;
    bottom: 30%;
    left: 60%;
    animation-delay: 4s;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 800;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.highlight {
    color: var(--text-dark);
    display: block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.btn-primary,
.btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: var(--border-radius-small);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-card {
    width: 100%;
    max-width: 350px;
    padding: 40px;
    text-align: center;
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.hero-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

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

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-dark);
    font-weight: 700;
}

.services-section {
    padding: 100px 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 40px;
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    text-align: left;
}

.service-features li {
    color: var(--text-light);
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* About Section */
.about-section {
    padding: 100px 0;
    background: var(--background-light);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: start;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius-small);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.skill-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.skill-item span {
    font-weight: 600;
    color: var(--text-dark);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    padding: 30px;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-light);
    font-weight: 600;
}

/* Tracking Section */
.tracking-section {
    padding: 100px 0;
    background: white;
}

.tracking-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.tracking-form {
    padding: 40px;
}

.tracking-form h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.tracking-form p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 15px;
    border: 2px solid rgba(135, 206, 235, 0.3);
    border-radius: var(--border-radius-small);
    font-size: 1rem;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(135, 206, 235, 0.2);
}

.project-demo {
    padding: 40px;
}

.project-demo h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--text-light);
    font-size: 1.1rem;
}

.feature-list i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: var(--background-light);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-card {
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

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

.contact-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.contact-card p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 350px;
    max-height: 500px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-strong);
    display: none;
    flex-direction: column;
    z-index: 1000;
    overflow: hidden;
}

.chat-header {
    padding: 20px;
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
    display: flex;
    align-items: center;
    gap: 15px;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.chat-avatar i {
    font-size: 2rem;
}

.chat-info h4 {
    margin-bottom: 2px;
    font-size: 1.1rem;
}

.chat-status {
    font-size: 0.9rem;
    opacity: 0.9;
}

.chat-close {
    margin-left: auto;
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: var(--transition);
}

.chat-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    max-height: 300px;
}

.message {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.message.user {
    flex-direction: row-reverse;
}

.message-content {
    background: var(--background-light);
    padding: 10px 15px;
    border-radius: var(--border-radius-small);
    max-width: 80%;
    line-height: 1.4;
}

.message.user .message-content {
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
}

.message-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--text-dark);
}

.chat-input {
    display: flex;
    padding: 15px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    gap: 10px;
}

.chat-input input {
    flex: 1;
    padding: 10px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-small);
    font-size: 0.9rem;
}

.chat-input button {
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    transition: var(--transition);
}

.chat-input button:hover {
    background: linear-gradient(135deg, #495057, #343a40);
}

.chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
    z-index: 999;
    animation: pulse 2s infinite;
}

.chat-button:hover {
    background: linear-gradient(135deg, #ff5252, #d32f2f);
    transform: scale(1.1);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 107, 107, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0);
    }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 30px;
    background: white;
    border-radius: var(--border-radius);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.modal-header h2 {
    color: var(--text-dark);
    font-size: 1.8rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    padding: 5px;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--background-light);
    color: var(--text-dark);
}

.project-progress {
    margin-bottom: 40px;
}

.project-progress h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.progress-steps::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--background-light);
    z-index: 1;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    background: white;
    padding: 10px;
    border-radius: var(--border-radius-small);
    position: relative;
    z-index: 2;
    min-width: 120px;
}

.step i {
    font-size: 1.5rem;
    color: var(--text-light);
    background: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--background-light);
}

.step.completed i {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.step.active i {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.step span {
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: center;
    font-weight: 600;
}

.step.completed span {
    color: var(--text-dark);
}

.step.active span {
    color: var(--accent-color);
}

.project-details {
    display: grid;
    gap: 30px;
}

.detail-section h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.comments-area,
.screenshots-area,
.files-area {
    background: var(--background-light);
    padding: 20px;
    border-radius: var(--border-radius-small);
    color: var(--text-light);
}

/* Admin Panel Styles */
.admin-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--background-light);
    padding-bottom: 15px;
}

.tab-btn {
    background: rgba(135, 206, 235, 0.1);
    border: 1px solid rgba(135, 206, 235, 0.3);
    border-radius: 12px;
    padding: 12px 20px;
    color: var(--text-dark);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tab-btn:hover {
    background: rgba(135, 206, 235, 0.2);
    transform: translateY(-2px);
}

.tab-btn.active:hover {
    background: var(--primary-dark);
}

.admin-content {
    min-height: 400px;
}

.admin-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.project-card {
    padding: 20px;
    transition: var(--transition);
}

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

.project-card h4 {
    color: var(--text-dark);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.project-card p {
    color: var(--text-light);
    margin-bottom: 8px;
}

.project-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.project-actions button {
    padding: 8px 15px;
    font-size: 0.9rem;
    border-radius: 8px;
}

.clients-list, .messages-list {
    display: grid;
    gap: 20px;
    margin-top: 20px;
}

.client-item, .message-item {
    padding: 20px;
    transition: var(--transition);
}

.client-item:hover, .message-item:hover {
    transform: translateY(-3px);
}

.client-item h4, .message-item h4 {
    color: var(--text-dark);
    margin-bottom: 10px;
}

.client-item p, .message-item p {
    color: var(--text-light);
    margin-bottom: 5px;
}

.message-item small {
    color: var(--text-light);
    font-style: italic;
}

.message-item button {
    margin-top: 10px;
    padding: 8px 15px;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .tracking-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .chat-widget {
        width: 90%;
        right: 5%;
    }
    
    .progress-steps {
        flex-direction: column;
        gap: 20px;
    }
    
    .progress-steps::before {
        display: none;
    }
    
    .modal-content {
        width: 95%;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}