/* ===================================
   ADCOM TECHNOLOGIES - MAIN STYLES
   Pure CSS3 - No JavaScript
   =================================== */

/* ===== RESET & GLOBAL ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #0066FF;
    --deep-blue: #1E40AF;
    --cyan: #06B6D4;
    --teal: #14B8A6;
    --purple: #8B5CF6;
    --orange: #F97316;
    --white: #FFFFFF;
    --light-gray: #F9FAFB;
    --dark-text: #1F2937;
    --darker-text: #111827;
    --shadow: rgba(0, 102, 255, 0.1);
}

html {
    scroll-behavior: smooth;
}

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

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

header:hover {
    box-shadow: 0 6px 30px rgba(0, 102, 255, 0.15);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

/* ===== LOGO ===== */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 0.5rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--primary-blue), var(--cyan), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform 0.3s ease;
}

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

.logo-sub {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--orange);
    text-transform: uppercase;
}

/* ===== NAVIGATION ===== */
nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--cyan));
    transition: width 0.3s ease;
}

nav a:hover {
    color: var(--primary-blue);
}

nav a:hover::after {
    width: 100%;
}

/* ===== DROPDOWN MENU ===== */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-toggle::before {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.4rem;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle::before {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: -2rem;
    background: white;
    min-width: 280px;
    box-shadow: 0 10px 40px rgba(0, 102, 255, 0.15);
    border-radius: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    margin-top: 1rem;
    padding: 1rem 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--dark-text);
    transition: background 0.3s ease, padding-left 0.3s ease;
    border-left: 3px solid transparent;
}

.dropdown-menu a:hover {
    background: linear-gradient(90deg, rgba(6, 182, 212, 0.1), transparent);
    padding-left: 2rem;
    border-left-color: var(--cyan);
}

.dropdown-menu a::after {
    display: none;
}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4);
    z-index: 999;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 35px rgba(37, 211, 102, 0.6);
}

.whatsapp-float::before {
    content: '📱';
    font-size: 2rem;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 6px 35px rgba(37, 211, 102, 0.7);
    }
}

/* ===== MAIN CONTENT ===== */
main {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* ===== SECTION STYLES ===== */
section {
    padding: 5rem 2rem;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--dark-text);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--cyan));
    color: white;
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--orange), #FF6B35);
    color: white;
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-3px);
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.15);
    border-color: var(--cyan);
}

/* ===== GRID LAYOUTS ===== */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

/* ===== FOOTER ===== */
footer {
    background: linear-gradient(135deg, var(--darker-text), var(--deep-blue));
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--cyan), var(--orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-section a:hover {
    color: var(--cyan);
    padding-left: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .dropdown-menu {
        left: 0;
        min-width: 240px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-float::before {
        font-size: 1.5rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}