:root {
    --bg-color: #0d1117;
    --bg-color-glass: rgba(22, 27, 34, 0.7);
    --primary-color: #ff6b35; /* vibrant energetic orange for thermal */
    --primary-hover: #e55a2b;
    --secondary-color: #1f6feb; /* deep tech blue */
    --text-main: #f0f6fc;
    --text-muted: #8b949e;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding-bottom: 70px; /* space for bottom nav */
}

/* Container locking width to mobile proportions for v-card feel */
.vcard-container {
    width: 100%;
    max-width: 480px;
    background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow-x: hidden;
}

/* Typography elements */
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-main);
    padding-left: 0.5rem;
    border-left: 4px solid var(--primary-color);
}

.glass-card {
    background: var(--bg-color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--glass-shadow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 14px rgba(255, 107, 53, 0.4);
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}
.btn-outline:hover {
    background: rgba(255, 107, 53, 0.1);
}

/* Hero Section */
.hero {
    position: relative;
    height: 260px;
}

.hero-img-wrapper {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    border-bottom-left-radius: 30px;
    border-bottom-right-radius: 30px;
    overflow: hidden;
    background-color: #161b22;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0.9);
    transition: transform 0.1s ease-out;
}

.profile-wrapper {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-color);
}

/* Header Info */
.header-info {
    text-align: center;
    margin-top: 60px;
    padding: 0 1rem;
}

.header-info h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    background: -webkit-linear-gradient(45deg, #fff, #8b949e);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.company-name {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* Content layout */
.content {
    padding: 0 1.5rem 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Contact Box */
.contact-box {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(31, 111, 235, 0.15);
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

a.icon-circle:hover {
    background: var(--secondary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(31, 111, 235, 0.3);
}

.contact-details {
    display: flex;
    flex-direction: column;
}

.contact-details .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-details .value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
}
.contact-details .value:hover {
    color: var(--primary-color);
}

.whatsapp-container {
    margin-top: 0.5rem;
    text-align: center;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    background: #25D366;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}
.whatsapp-btn:hover {
    background: #1ebc5a;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
}

/* Text Box for About */
.text-box p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1rem;
}
.text-box p:last-child {
    margin-bottom: 0;
}

/* Products Section */
.product-card {
    padding: 0;
    overflow: hidden;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}
.product-card:last-child {
    margin-bottom: 0;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
}

.product-img {
    width: 100%;
    height: 350px;
    object-fit: contain;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
}

.placeholder-gradient {
    background: linear-gradient(135deg, #2a3342, #161b22);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-info {
    padding: 1.25rem;
}

.product-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.product-info p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1.25rem;
}

.product-actions {
    display: flex;
    gap: 0.75rem;
}
.product-actions .btn {
    flex: 1;
}

/* PDF Section */
.pdf-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.pdf-icon {
    font-size: 2.5rem;
    color: #e21b1b;
}

.pdf-details {
    flex: 1;
}

.pdf-details h4 {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

/* Bottom Nav */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    background: rgba(22, 27, 34, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0.75rem 0;
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    font-size: 0.75rem;
    width: 20%;
}

.nav-item i {
    font-size: 1.2rem;
    transition: var(--transition);
}

.nav-item:hover, .active-nav {
    color: var(--primary-color);
}
.nav-item:hover i {
    transform: translateY(-3px);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

/* Modal Box */
.modal-content {
    background: var(--bg-color-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    box-shadow: var(--glass-shadow);
    transform: translateY(20px);
    transition: var(--transition);
    position: relative;
}

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

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

.modal-title {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-main);
}

/* Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.form-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-group input {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
}

.submit-btn {
    margin-top: 0.5rem;
    width: 100%;
    padding: 12px;
}