:root {
    --primary-color: #00838f;
    --secondary-color: #006064;
    --text-color: #333;
    --light-color: #f8f9fa;
    --error-color: #d00000;
    --success-color: #38b000;
    /* Hero section variables */
    --primary: #1E88E5;
    --primary-dark: #1565C0;
    --secondary: #7C4DFF;
    --accent: #00E676;
    --background: #f8f9fa;
    --text: #263238;
    --text-light: #546E7A;
    --white: #ffffff;
    --success: #00C853;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8f9fa;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden; /* Prevent horizontal scroll on mobile */
}

/* Header Styles */
.main-header {
    background-color: white;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(124, 77, 255, 0.1);
}

nav ul li a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.25rem 0;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

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

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-image {
    height: 30px;
    width: auto;
    margin-right: 8px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1E88E5; 
    letter-spacing: 0.5px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 2rem;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transform: translateY(-20px);
    transition: all 0.3s ease-in-out;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    font-weight: 700;
    margin: 0;
}

.close-button {
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: #666;
}

/* Form Styles */
.phone-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: #555;
}

.country-select {
    padding: 0.75rem;
    border-radius: 5px;
    border: 1px solid #ddd;
    font-size: 1rem;
}

.country-select option {
    display: flex;
    align-items: center;
    padding: 8px;
}

.phone-input-container {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.phone-code {
    padding: 0.75rem;
    background-color: #f0f0f0;
    border-radius: 5px;
    border: 1px solid #ddd;
    font-weight: 600;
    min-width: 65px;
    text-align: center;
}

.phone-input {
    flex: 1;
    padding: 0.75rem;
    border-radius: 5px;
    border: 1px solid #ddd;
    font-size: 1rem;
}

.verify-button {
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.verify-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(255,255,255,0) 0%, 
        rgba(255,255,255,0.2) 50%, 
        rgba(255,255,255,0) 100%
    );
    transition: all 0.6s ease;
}

.verify-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(124, 77, 255, 0.4);
}

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

.result-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.success {
    background-color: rgba(6, 214, 160, 0.2);
    color: var(--success-color);
    display: block;
}

.error {
    background-color: rgba(230, 57, 70, 0.2);
    color: var(--error-color);
    display: block;
}

/* Button styling for the hero section */
.btn-rastreie-agora {
    background: linear-gradient(to right, #3b82f6, #5b98e3);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    transition: all 0.3s ease;
}

.btn-rastreie-agora:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(37, 99, 235, 0.3);
}

.btn-tag {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.15);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.7rem;
    margin-left: 0.5rem;
    font-weight: 600;
}

.btn-hover {
    transition: all 0.3s ease;
}

.btn-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(37, 99, 235, 0.4);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }
    
    nav ul {
        margin-top: 1rem;
    }
    
    nav ul li {
        margin-left: 1rem;
        margin-right: 1rem;
    }
    
    .modal {
        width: 90%;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .logo-image {
        height: 24px;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .header-container {
        flex-direction: column;
        padding: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0.5rem;
    }
}

/* Mobile Menu Styles */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 200;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    border-radius: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s ease-in-out;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .header-container {
        padding: 1rem;
        flex-direction: row; /* Fixed from earlier */
        justify-content: space-between;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background-color: white;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease-in-out;
        z-index: 100;
        padding-top: 60px;
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
        margin-top: 0; /* Fixed */
    }
    
    nav ul li {
        margin: 1rem 0;
        width: 100%;
    }
    
    nav ul li a {
        display: block;
        padding: 0.5rem 0;
        font-size: 1.1rem;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 90;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease-in-out;
    }
    
    .overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    body.menu-open {
        overflow: hidden;
    }
}