/* ===================================
   BK GREEN ENERGY - ABOUT PAGE
   =================================== */

/* Import common styles */
@import url('common.css');

/* ===================================
   INTRODUCTION SECTION
   =================================== */

.intro-section {
    position: relative;
    padding: 170px var(--space-xs) 120px;
    background-image: url("../assets/images/About us.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

/* overlay */
.intro-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 0;   /* BELOW content */
}

/* keep content above overlay */
.intro-section .container {
    position: relative;
    z-index: 2;
    color: #fff;
}

/* layout */
.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* text */
.intro-text h1 {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 25px;
    font-weight: 700;
}

.intro-text p {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #ffffff;
}

/* svg */
.intro-image svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(15,124,58,0.2));
}

/* animations */
.sun-glow { animation: pulse 3s ease-in-out infinite; }
.float-1 { animation: float 4s ease-in-out infinite; }
.float-2 { animation: float 5s ease-in-out infinite 1s; }

/* decoration */
.bg-decoration {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(15,124,58,0.1), transparent);
    border-radius: 50%;
    z-index: 1;
}

/* ---------- MOBILE ---------- */
@media (max-width: 991px){
    .intro-content{
        grid-template-columns:1fr;
        text-align:center;
        gap:40px;
    }

    .intro-section{
        padding:150px 20px 90px;
    }

    .intro-text h1{
        font-size:2.2rem;
    }

    .intro-text p{
        font-size:1.05rem;
    }
}


/* ===================================
   VISION SECTION
   =================================== */

.vision-section {
    padding: 100px 20px;
    background: var(--white);
}

.vision-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
}

.vision-image {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.icon-circle {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(15, 124, 58, 0.2);
    animation: float 3s ease-in-out infinite;
    padding: 30px;
}

.icon-circle svg {
    width: 100%;
    height: 100%;
}

.accent-line {
    width: 4px;
    height: 80px;
    background: linear-gradient(to bottom, var(--primary-green), transparent);
    margin-top: 20px;
}

.vision-text h2 {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 20px;
    font-weight: 700;
}

.vision-text p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #555;
}

/* ===================================
   MISSION SECTION
   =================================== */

.mission-section {
    padding: var(--space-xl) var(--space-xs);
    background: var(--accent-green);
}

.mission-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-md);
    align-items: center;
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.mission-text h2 {
    font-size: var(--text-3xl);
    color: var(--primary-green);
    margin-bottom: var(--space-xs);
    font-weight: 700;
}

.mission-text p {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--text-secondary);
}

.mission-image {
    display: flex;
    justify-content: center;
}

/* ===================================
   JOURNEY SECTION
   =================================== */

.journey-section {
    padding: var(--space-xl) var(--space-xs);
    background: var(--white);
}

.journey-section h2 {
    text-align: center;
    font-size: var(--text-3xl);
    color: var(--primary-green);
    margin-bottom: var(--space-md);
    font-weight: 700;
}

.timeline {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--space-sm) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--primary-green), var(--secondary-green));
    z-index: var(--z-base);
}

.timeline-item {
    position: relative;
    flex: 1;
    text-align: center;
    z-index: 1;
}

.timeline-dot {
    width: 60px;
    height: 60px;
    background: var(--white);
    border: 4px solid var(--primary-green);
    border-radius: 50%;
    margin: 0 auto var(--space-xs);
    position: relative;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-green);
}

.timeline-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: var(--primary-green);
    border-radius: 50%;
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.2);
    box-shadow: 0 6px 25px rgba(15, 124, 58, 0.5);
}

.timeline-content h3 {
    font-size: var(--text-2xl);
    color: var(--primary-green);
    margin-bottom: 10px;
    font-weight: 700;
}

.timeline-content p {
    font-size: var(--text-base);
    color: var(--text-secondary);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */