:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --accent: #38bdf8;
    --dark: #0f172a;
    --slate: #334155;
    --light: #f8fafc;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--light);
    color: var(--dark);
    overflow-x: hidden;
    width: 100%;
    position: relative;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Navigacija */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    padding: 12px 0;
}

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

.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary);
}

.main-call-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
    white-space: nowrap;
    transition: var(--transition);
}

.main-call-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

@media screen and (max-width: 768px) {
    .main-call-btn {
        width: 42px;
        height: 42px;
        padding: 0;
        border-radius: 50%;
        justify-content: center;
        gap: 0;
    }
    .main-call-btn strong,
    .main-call-btn .hide-mobile {
        display: none !important;
    }
    .main-call-btn .pulse-icon {
        margin: 0;
        font-size: 1.1rem;
    }
}

/* Hero Sekcija */
.hero {
    position: relative;
    padding: 140px 0 70px;
    background: linear-gradient(180deg, #e0f2fe 0%, var(--light) 100%);
    overflow: hidden;
    text-align: center;
}

.glow-bg {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    opacity: 0.4;
}

.glow-1 { width: 250px; height: 250px; background: #38bdf8; top: 10%; left: 5%; }
.glow-2 { width: 300px; height: 300px; background: #bae6fd; top: 20%; right: 5%; }

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 750px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary-dark);
    padding: 5px 14px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 15px;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.hero h1 {
    font-size: 2.3rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

@media (min-width: 768px) {
    .hero h1 { font-size: 3.2rem; }
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), #0284c7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.05rem;
    color: var(--slate);
    margin-bottom: 30px;
}

.hero-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 35px;
}

@media (min-width: 640px) {
    .hero-stats { grid-template-columns: repeat(3, 1fr); }
}

.stat-box {
    background: var(--white);
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
    border: 1px solid #f1f5f9;
}

.stat-num {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--slate);
    font-weight: 600;
}

/* Usluge */
.services {
    padding: 70px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 40px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.section-header p {
    color: var(--slate);
    font-size: 0.95rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
    border: 1px solid #f1f5f9;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
}

.img-wrapper {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.hover-zoom {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .hover-zoom {
    transform: scale(1.05);
}

.card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(8px);
    color: var(--white);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
}

.card-info {
    padding: 20px;
}

.card-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.card-info p {
    color: var(--slate);
    font-size: 0.9rem;
}

/* Zona Pokrivenosti - Mapa */
.coverage-section {
    padding: 70px 0;
    background: #f1f5f9;
    border-top: 1px solid #e2e8f0;
}

#coverage-map {
    height: 380px;
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.06);
    border: 3px solid white;
}

@media (min-width: 768px) {
    #coverage-map { height: 480px; }
}

/* Kalkulator Sekcija */
.calc-section {
    padding: 70px 0;
    background: linear-gradient(180deg, var(--light) 0%, #e0f2fe 100%);
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 968px) {
    .calc-grid { grid-template-columns: 1fr 1.2fr; gap: 50px; }
}

.calc-info h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.calc-desc {
    color: var(--slate);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.calc-rules {
    background: var(--white);
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
    border: 1px solid #f1f5f9;
}

.rule-item {
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--slate);
}

.calc-box {
    background: var(--white);
    padding: 24px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
    border: 1px solid #f1f5f9;
}

@media (min-width: 640px) {
    .calc-box { padding: 35px; }
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

@media (min-width: 500px) {
    .form-grid { grid-template-columns: 1fr 1fr; }
    .form-group.full-w { grid-column: span 2; }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--slate);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid #cbd5e1;
    font-size: 1rem;
    outline: none;
    background: var(--light);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.btn-calc {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 14px;
    border-radius: 12px;
    border: none;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
    transition: var(--transition);
}

.btn-calc:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.results {
    margin-top: 25px;
    border-top: 1px solid #f1f5f9;
    padding-top: 20px;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
    min-width: 280px;
}

.table th,
.table td {
    padding: 10px;
    text-align: left;
    font-size: 0.85rem;
    border-bottom: 1px solid #f1f5f9;
}

.table th {
    font-weight: 700;
    color: var(--slate);
}

.total-display {
    font-size: 1.15rem;
    font-weight: 800;
    text-align: right;
    color: var(--dark);
}

.total-display span {
    color: var(--primary);
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 25px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 35px;
    margin-bottom: 40px;
}

@media (min-width: 768px) {
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
}

.footer-col h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
}

.footer-col p {
    color: #94a3b8;
    font-size: 0.9rem;
}

.phone-cards {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.phone-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 14px;
    border-radius: 12px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.phone-card:hover {
    background: rgba(14, 165, 233, 0.15);
    border-color: var(--primary);
    transform: translateX(4px);
}

.phone-name {
    font-size: 0.75rem;
    color: #94a3b8;
}

.phone-number {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
}

.social-icons {
    display: flex;
    gap: 10px;
}

.social-btn {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: var(--transition);
}

.social-btn svg {
    width: 18px;
    height: 18px;
}

.social-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
    font-size: 0.8rem;
}