/* Global Theme */
:root {
    --teal: #69b6ad;
    --cyan: #29b9da;
    --accent: #ffe082;
    --text-dark: #1f2933;
    --text-muted: #4b5563;
    --card-bg: rgba(255, 255, 255, 0.9);
    --shadow: 0 10px 40px rgba(41, 185, 218, 0.15);
    --bg-primary: #f8fbfc;
    --nav-bg: rgba(255, 255, 255, 0.82);
    --nav-border: rgba(200,200,200,0.25);
}

:root.dark-mode {
    --text-dark: #e2e8f0;
    --text-muted: #cbd5e1;
    --card-bg: rgba(30, 41, 59, 0.8);
    --shadow: 0 10px 40px rgba(15, 23, 42, 0.4);
    --bg-primary: #0f172a;
    --nav-bg: rgba(15, 23, 42, 0.95);
    --nav-border: rgba(71, 85, 105, 0.5);
}

* { box-sizing: border-box; }

body {
    font-family: 'Montserrat', Arial, sans-serif;
    margin: 0;
    color: var(--text-dark);
    background: var(--bg-primary);
    transition: background 0.3s ease, color 0.3s ease;
}

a { color: inherit; text-decoration: none; }

/* Navbar */
nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
    box-shadow: 0 6px 24px rgba(0,0,0,0.06);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.navbar-brand img {
    height: 48px;
    width: 48px;
    border-radius: 8px;
    border: 2px solid var(--cyan);
    box-shadow: 0 4px 12px rgba(41,185,218,0.3);
    object-fit: cover;
    transition: transform 0.2s ease;
}

.navbar-brand img:hover {
    transform: scale(1.08);
}

.nav-link {
    font-weight: 600;
    border-radius: 10px;
    padding: 8px 14px !important;
    transition: background 0.2s, color 0.2s;
    color: var(--text-dark) !important;
}

.nav-link:hover, .nav-link:focus {
    background: rgba(41, 185, 218, 0.15);
    color: var(--cyan) !important;
}

#page { overflow: visible; }

.section-pad { padding: 72px 0 56px; }

/* Hero */
.hero {
    position: relative;
    min-height: 70vh;
    display: grid;
    place-items: center;
    text-align: center;
    background: linear-gradient(120deg, var(--teal), var(--cyan));
    color: #fff;
}

:root.dark-mode .hero {
    background: linear-gradient(120deg, #0f172a, #1e293b);
}

.hero h1 { font-size: 2.4rem; font-weight: 700; margin-bottom: 12px; }
.hero h2 { font-size: 1.25rem; font-weight: 500; margin-bottom: 18px; color: #e3f7fb; }
.hero p { max-width: 640px; margin: 0 auto 22px; color: #e9f8fb; }

.hero img {
    width: 360px;
    height: 360px;
    border-radius: 18px;
    border: 5px solid #fff;
    object-fit: cover;
    box-shadow: var(--shadow);
    margin-bottom: 18px;
    transition: transform 0.3s ease;
}

.hero img:hover {
    transform: scale(1.03);
}

.section-title {
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--text-dark);
}

/* Cards */
.card-lite {
    background: var(--card-bg);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 24px;
    height: 100%;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    border: 1px solid rgba(105,182,173,0.18);
}

.card-lite:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 14px 40px rgba(41,185,218,0.22);
}

.badge-tech {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(41,185,218,0.08);
    border: 1px solid rgba(41,185,218,0.18);
    border-radius: 12px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 4px;
}

.list-simple { padding-left: 18px; color: var(--text-muted); }

.service-icon, .project-icon {
    font-size: 1.8rem;
    color: var(--cyan);
    margin-bottom: 12px;
}

.cta-link {
    color: var(--cyan);
    font-weight: 700;
    text-decoration: none;
}

.cta-link:hover { color: var(--teal); }

.contact-block a { color: var(--cyan); font-weight: 600; }

/* Section backgrounds */
.section-services { 
    background: linear-gradient(180deg, #f4fbfd 0%, #e7f7fb 100%);
}

:root.dark-mode .section-services {
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
}

/* Theme toggle */
.theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-dark);
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.2s ease, color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: rgba(41, 185, 218, 0.1);
}

.theme-toggle:focus {
    outline: 2px solid var(--cyan);
    outline-offset: 2px;
}
.section-contact {
    background: linear-gradient(120deg, var(--teal), var(--cyan));
    color: #fff;
}

:root.dark-mode .section-contact {
    background: linear-gradient(120deg, #1e293b, #0f172a);
    border-top: 2px solid var(--cyan);
}

.section-contact .section-title { color: #fff; }
.section-contact a { 
    color: #fff;
    font-weight: 600;
    transition: opacity 0.2s ease;
}
.section-contact a:hover {
    opacity: 0.8;
}

/* Footer */
.footer {
    padding: 28px 0;
    background: #0f172a;
    color: #e2e8f0;
    text-align: center;
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero h2 { font-size: 1.1rem; }
}