/* Design System Emotrack */
:root {
    --primary-red: #EA2831;
    --primary-yellow: #FFC81B;
    --primary-green: #006E47;
    --primary-blue-sky: #01A0D8;
    --primary-blue-deep: #004C92;
    --primary-black: #000001;
    --white: #ffffff;
    --gray-light: #f4f7f6;
    --gray-dark: #333333;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-accent: 0 5px 15px rgba(1, 160, 216, 0.3);
    --primary-font: 'Nunito', sans-serif;
    --heading-font: 'Poppins', sans-serif;
    --display-font: 'Montserrat', sans-serif;
}

/* Reset & Utilities */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--primary-font);
    color: var(--gray-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

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

h1, h2, h3, h4 {
    font-family: var(--heading-font);
    font-weight: 700;
}

.highlight {
    color: var(--primary-blue-sky);
    background: linear-gradient(120deg, transparent 0%, transparent 60%, rgba(1, 160, 216, 0.2) 60%, rgba(1, 160, 216, 0.2) 100%);
}

.highlight-blue {
    color: var(--primary-blue-deep);
}

img {
    max-width: 100%;
    height: auto;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 45px;
    transition: transform 0.3s ease;
}

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

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

.nav-links a {
    text-decoration: none;
    color: var(--primary-blue-deep);
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s ease;
}

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

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-blue-deep);
    border-radius: 2px;
}

/* Sections Common */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-blue-deep);
    margin-bottom: 10px;
    font-family: var(--display-font);
}

.underline {
    width: 60px;
    height: 4px;
    background: var(--primary-blue-sky);
    margin: 0 auto;
    border-radius: 2px;
}

.section-header.white h2 { color: var(--white); }
.section-header.white .underline { background: var(--primary-yellow); }

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 10% 20%, rgba(1, 160, 216, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(255, 200, 27, 0.05) 0%, transparent 40%);
    padding-top: 120px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 50px;
}

.hero-text h1 {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 25px;
    color: var(--primary-blue-deep);
    font-family: var(--display-font);
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--gray-dark);
    margin-bottom: 40px;
    max-width: 500px;
}

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

.app-btn-wrapper {
    position: relative;
    display: inline-block;
}

.badge {
    position: absolute;
    top: -12px;
    right: -10px;
    background: var(--primary-red);
    color: var(--white);
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: 700;
    text-transform: uppercase;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-family: var(--heading-font);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-blue-deep);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 76, 146, 0.2);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-blue-deep);
    border: 2px solid var(--primary-blue-deep);
}

.btn.disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn:not(.disabled):hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 76, 146, 0.3);
}

.btn-icon {
    margin-right: 10px;
    font-size: 1.2rem;
}

.hero-image img {
    filter: drop-shadow(20px 20px 50px rgba(0,0,0,0.1));
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.about-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.03);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-soft);
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.icon-circle.red { background: rgba(234, 40, 49, 0.1); color: var(--primary-red); }
.icon-circle.blue { background: rgba(1, 160, 216, 0.1); color: var(--primary-blue-sky); }
.icon-circle.green { background: rgba(0, 110, 71, 0.1); color: var(--primary-green); }

.about-card h3 {
    margin-bottom: 20px;
    color: var(--primary-blue-deep);
}

/* Features Section */
.features {
    background: linear-gradient(135deg, var(--primary-blue-deep) 0%, #002D57 100%);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(var(--primary-blue-sky) 0.5px, transparent 0.5px);
    background-size: 30px 30px;
    opacity: 0.1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
    padding: 40px;
    border-radius: 24px;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.02);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-item h4 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.feature-item p {
    font-size: 0.95rem;
    opacity: 0.8;
}

/* Stakeholders Section */
.stakeholders {
    padding: 120px 0;
}

.stakeholder-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 80px;
}

.st-text h2 {
    font-size: 3rem;
    margin-bottom: 25px;
    font-family: var(--display-font);
}

.st-text p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

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

.st-list li {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
}

.st-list li span {
    color: var(--primary-green);
    font-weight: 700;
}

/* Contact Section */
.contact {
    background: var(--gray-light);
    padding: 120px 0;
}

.contact-card {
    background: var(--white);
    padding: 60px;
    border-radius: 30px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    max-width: 800px;
    margin: 0 auto;
}

.contact-card h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-blue-deep);
}

.contact-card p {
    margin-bottom: 40px;
    font-size: 1.1rem;
}

#contact-form {
    display: flex;
    gap: 15px;
    max-width: 500px;
    margin: 0 auto 40px;
}

#contact-form input {
    flex: 1;
    padding: 15px 25px;
    border-radius: 50px;
    border: 1px solid #ddd;
    outline: none;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

#contact-form input:focus {
    border-color: var(--primary-blue-sky);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    align-items: center;
}

.social-icon {
    text-decoration: none;
    color: var(--primary-blue-deep);
    font-weight: 600;
    transition: color 0.3s ease;
}

.social-icon:hover {
    color: var(--primary-red);
}

.separator {
    color: #ddd;
}

/* Footer */
.footer {
    padding: 40px 0;
    background: var(--white);
    border-top: 1px solid #eee;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    text-decoration: none;
    color: var(--gray-dark);
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-blue-sky);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    color: #888;
    font-size: 0.9rem;
    border-top: 1px solid #eee;
    padding-top: 20px;
}

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

.float-animation {
    animation: float 5s ease-in-out infinite;
}

.fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.fade-in-delayed {
    opacity: 0;
    animation: fadeIn 1s ease-out 0.5s forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .hero-content, .about-grid, .features-grid, .stakeholder-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 { font-size: 2.8rem; }
    .hero-text p { margin: 0 auto 40px; }
    .hero-btns { justify-content: center; }
    
    .st-text h2 { font-size: 2.2rem; }
    .st-list li { justify-content: flex-start; text-align: left; }
    .st-text p { text-align: left; }
    .stakeholder-content h2 { text-align: left; }
    
    .nav-links { display: none; }
    .mobile-menu { display: flex; }
}

@media (max-width: 600px) {
    #contact-form { flex-direction: column; }
    #contact-form button { width: 100%; }
    .hero-text h1 { font-size: 2.2rem; }
}