/* ============================================
   GLOBAL STYLES - Helionexa Energy
   Colors: Deep Navy #0A192F | Thick Orange #F97316
   ============================================ */

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

:root {
    --navy: #0A192F;
    --navy-light: #1B2A4A;
    --orange: #F97316;
    --orange-dark: #E0600E;
    --orange-light: #FF8C42;
    --white: #FFFFFF;
    --gray: #8892B0;
    --light-gray: #E6E8ED;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--white);
    color: var(--navy);
    line-height: 1.6;
    padding-top: 80px; /* Space for fixed header */
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

/* ---------- BUTTONS ---------- */
.btn-primary {
    display: inline-block;
    background: var(--orange);
    color: var(--white);
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.35);
}

.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(249, 115, 22, 0.5);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--white);
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    border: 2px solid var(--white);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--navy);
    transform: translateY(-3px);
}

.btn-outline {
    display: inline-block;
    background: transparent;
    color: var(--orange);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid var(--orange);
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--orange);
    color: var(--white);
    transform: translateY(-2px);
}

/* ---------- SECTION TITLES ---------- */
.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 12px;
    line-height: 1.2;
}

.section-title span {
    color: var(--orange);
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 40px;
    text-align: center;
}

.text-center {
    text-align: center;
}

/* ---------- UTILITY ---------- */
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.py-60 { padding-top: 60px; padding-bottom: 60px; }
.py-100 { padding-top: 100px; padding-bottom: 100px; }

/* ---------- RESPONSIVE BASE ---------- */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2.4rem;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        padding: 0 15px;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-outline {
        padding: 12px 28px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.7rem;
    }
    
    .container {
        padding: 0 15px;
    }
}