:root {
    --bg-color: #fdfdfd;
    --text-color: #333;
    --white-color: #fdfdfd;
    --shadow-color: rgba(0, 0, 0, 0.2);
    --secondary-color: #6c757d;
    --dark-color: #041021;
    --light-color: #f8f9fa;

    --main-color: #126669;
    --main-dark: #0a4a4c;
    --main-light: #1a8a8d;
    --accent-color: #DFA91E;
    --accent-dark: #b98a17;
    --accent-light: #e8b941;
    --logo-seagreen: #126669;
    --logo-yellow: #DFA91E;

    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;

    --complementary-blue: #1e6fdf;
    --complementary-red: #df1e4f;
}

.dark-mode {
    --bg-color: #041021;
    --text-color: #f8f9fa;
    --shadow-color: rgba(255, 255, 255, 0.1);
    --main-color: #1a8a8d;
    --accent-color: #e8b941;
    --secondary-color: #adb5bd;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    scroll-behavior: smooth;
    font-family: 'Poppins', sans-serif;
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
}

body {
    background: var(--bg-color);
    color: var(--text-color);
    transition: background 0.5s ease, color 0.5s ease;
}

section {
    padding: 10rem 7%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.dtext {
    text-transform: uppercase;
    color: var(--logo-yellow);
}

.btn {
    display: inline-block;
    padding: 1.2rem 2.8rem;
    background-color: var(--main-color);
    border-radius: 0.6rem;
    box-shadow: 0 0.2rem 0.5rem var(--shadow-color);
    font-size: 1.6rem;
    color: var(--white-color);
    letter-spacing: 0.1rem;
    font-weight: 600;
    border: 0.2rem solid transparent;
    transition: all 0.5s ease;
    cursor: pointer;
}

.btn:hover {
    background: transparent;
    color: var(--main-color);
    border-color: var(--main-color);
    transform: translateY(-3px);
    box-shadow: 0 0.5rem 1rem var(--shadow-color);
}

.btn-disabled {
    background-color: #ccc;
    color: #666;
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
}

.secondary-btn {
    background: transparent;
    color: var(--main-color);
    border-color: var(--main-color);
    margin-left: 1.5rem;
}

.secondary-btn:hover {
    background: var(--main-color);
    color: var(--white-color);
}

.heading {
    font-size: 4.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

.heading span {
    color: var(--main-color);
}

.subheading {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 5rem;
    color: var(--secondary-color);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}


.scroll-top {
    position: fixed;
    bottom: 90px;
    right: 23px;
    width: 50px;
    height: 50px;
    background: var(--bg-color);
    box-shadow: 0 4px 20px var(--shadow-color);
    border-radius: 50%;
    color: var(--text-color);
    font-size: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9998;
    cursor: pointer;
    border: none;
    outline: none;
    transform: translateY(10px);
}

.scroll-top.scrollActive {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-5px) !important;
    background: var(--primary-color);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

.scroll-top:focus {
    outline: 2px solid rgba(0, 0, 0, 0.2);
    outline-offset: 2px;
}


@media (max-width: 1200px) {
    html {
        font-size: 55%;
    }

    section {
        padding: 10rem 3%;
    }
}

@media (max-width: 450px) {
    html {
        font-size: 50%;
    }
}

.whatsapp {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25D366;
    color: white;
    font-size: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border: none;
    outline: none;
    cursor: pointer;
    animation: pulse 2s infinite;
}

.whatsapp:hover {
    transform: scale(1.1) translateY(-5px);
    background-color: #128C7E; 
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.whatsapp:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.whatsapp::after {
    content: "Chat with us on WhatsApp";
    position: absolute;
    bottom: 100%;
    right: 50%;
    transform: translateX(50%);
    background: #333;
    color: #fff;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: 0.25rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    width: max-content;
    max-width: 200px;
    text-align: center;
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.whatsapp:hover::after {
    opacity: 1;
}

/* Pulse animation */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 12px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .whatsapp::after {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
}