:root {
    /* --- NEW PREMIUM RED & WHITE PALETTE --- */
    --tef-about-primary: #e60023;       
    --tef-about-accent: #b3001b;        
    --tef-about-dark: #1a1a1a;          
    --tef-about-muted: #666666;         
    --tef-about-light: #ffffff;         
    --tef-about-bg-gray: #f8f9fa;       
    
    /* --- ON-RED SECTION VARIABLES --- */
    --tef-about-text-on-red: #ffffff;  
    --tef-about-muted-on-red: #ffcccc; 

    /* --- SHADOWS & UTILITIES --- */
    --tef-about-shadow: 0 15px 35px rgba(0, 0, 0, 0.06);
    --tef-about-shadow-hover: 0 20px 40px rgba(230, 0, 35, 0.15);
    --tef-about-radius-lg: 24px; 
    --tef-about-radius-md: 16px;
}

body {
    margin: 0;
    padding: 0;
}

.tef-about-main-container {
    font-family: 'Kanit', sans-serif;
    color: var(--tef-about-dark);
    /* background-color: var(--tef-about-light); */
    background-color: var(--tef-about-primary); 
}

.tef-about-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 90px 24px;
}

.tef-about-badge {
    display: inline-block;
    background: rgba(230, 0, 35, 0.08);
    color: var(--tef-about-primary);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tef-about-img-placeholder {
    background: #f1f3f5;
    border-radius: var(--tef-about-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.tef-about-img-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tef-about-img-placeholder:hover img {
    transform: scale(1.03);
}

.tef-about-base-white {
    background-color: var(--tef-about-light);
}

/* -------------------------------------------------------------
   1. HERO STORY SECTION 
------------------------------------------------------------- */
/* #region */

.tef-about-hero-bg-wrapper {
    background-color: var(--tef-about-primary); 
    color: var(--tef-about-text-on-red);
}

.tef-about-hero-grid {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 60px;
    align-items: center;
}

.tef-about-hero-bg-wrapper .tef-about-badge {
    background: rgba(255, 255, 255, 0.15);
    color: var(--tef-about-light);
}

.tef-about-hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--tef-about-light); 
    margin-bottom: 24px;
}

.tef-about-hero-text h1 span {
    color: #fffb00; 
}

.tef-about-hero-text p {
    font-size: 1.05rem;
    color: var(--tef-about-muted-on-red); 
    line-height: 1.8;
    margin-bottom: 20px;
}

.tef-about-hero-img-wrap {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    height: 480px;
    position: relative;
}

.tef-about-img-main {
    grid-column: 1 / 10;
    grid-row: 1 / 11;
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    border: 4px solid rgba(255, 255, 255, 0.1);
}

.tef-about-img-sub {
    grid-column: 6 / 13;
    grid-row: 4 / 12;
    z-index: 3;
    border: 10px solid var(--tef-about-light);
    box-shadow: 0 25px 50px rgba(0,0,0,0.25);
}

/* #endregion */
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/* -------------------------------------------------------------
   2. GREEN INNOVATION SHOWCASE 
------------------------------------------------------------- */
/* #region */

.tef-about-green-section-wrapper {
    background-color: var(--tef-about-light); 
    color: var(--tef-about-dark);
}

.tef-about-innovation-block {
    display: grid;
    grid-template-columns: 6fr 5fr;
    gap: 60px;
    align-items: center;
}

.tef-about-green-section-wrapper .tef-about-badge {
    background: rgba(46, 204, 113, 0.1); 
    color: #27ae60; 
}

.tef-about-innovation-text h2 {
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--tef-about-dark);
}

.tef-about-innovation-text h2 span {
    color: #27ae60; 
}

.tef-about-innovation-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--tef-about-muted); 
}

.tef-about-inno-img {
    height: 360px;
    box-shadow: var(--tef-about-shadow);
    border: 1px solid #e9ecef; 
}

/* #endregion */
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/* -------------------------------------------------------------
   3. PHILOSOPHY (VISION, MISSION, VALUES)
------------------------------------------------------------- */
/* #region */

.tef-about-philosophy-split-layout {
    display: grid;
    grid-template-columns: 4fr 8fr;
    gap: 60px;
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 24px;
}

.tef-about-philosophy-sticky-title {
    position: sticky;
    top: 100px;
}

.tef-about-philosophy-sticky-title h2 {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--tef-about-dark);
}

.tef-about-philosophy-sticky-title h2 span {
    color: var(--tef-about-primary);
    display: block;
}

.tef-about-philosophy-stack-container {
    display: flex;
    flex-direction: column;
    gap: 32px; 
}

.tef-about-modern-row-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 40px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 35px;
    align-items: center; 
    position: relative;
    overflow: hidden;
    border: 1px solid #e9ecef;
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.tef-about-modern-row-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    background: var(--tef-about-primary);
    transform: scaleY(0.3); 
    opacity: 0;
    transition: all 0.4s ease;
}

.tef-about-card-number-bg {
    position: absolute;
    right: 40px;
    top: 25px;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(0, 0, 0, 0.03);
    font-family: 'Poppins', sans-serif;
    line-height: 1;
    user-select: none;
    transition: all 0.4s ease;
}

.tef-about-modern-icon-center {
    position: relative;
    width: 70px;
    height: 70px;
    background: #f8f9fa;
    color: var(--tef-about-dark);
    border-radius: 50%; 
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 2;
    border: 1px solid #e9ecef;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.tef-about-modern-card-body {
    z-index: 2;
}

.tef-about-modern-card-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--tef-about-dark);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tef-about-modern-card-body h3 span {
    font-size: 1rem;
    color: var(--tef-about-muted);
    font-weight: 400;
}

.tef-about-modern-card-body p {
    font-size: 1.05rem;
    color: #555555; 
    line-height: 1.75;
}

.tef-about-modern-row-card:hover {
    transform: translateX(10px); 
    background: #ffffff;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
    border-color: rgba(0, 0, 0, 0.08);
}

.tef-about-modern-row-card:hover::before {
    transform: scaleY(1);
    opacity: 1;
}

.tef-about-modern-row-card:hover .tef-about-modern-icon-center {
    background: var(--tef-about-primary);
    color: #ffffff;
    border-color: var(--tef-about-primary);
    transform: rotate(360px); 
}

.tef-about-modern-row-card:hover .tef-about-card-number-bg {
    color: rgba(230, 0, 35, 0.06);
    transform: scale(1.1);
}

@media (max-width: 992px) {
    .tef-about-philosophy-split-layout {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 60px 20px;
    }
    .tef-about-philosophy-sticky-title {
        position: relative;
        top: 0;
        margin-bottom: 10px;
    }
    .tef-about-modern-row-card {
        padding: 30px;
        grid-template-columns: 1fr; 
        gap: 20px;
    }
    .tef-about-modern-row-card:hover {
        transform: translateY(-5px); 
    }
}

/* #endregion */
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/* -------------------------------------------------------------
   4. FOUNDER & TEAM 
------------------------------------------------------------- */
/* #region */
.tef-about-founder-wrapper {
    background-color: var(--tef-about-primary);
    position: relative;
    overflow: hidden;
}

.tef-about-founder-wrapper::before {
    content: "“";
    position: absolute;
    right: 5%;
    top: -20px;
    font-size: 20rem;
    color: rgba(255, 255, 255, 0.05);
    font-family: serif;
    line-height: 1;
    pointer-events: none;
}

.tef-about-founder-grid {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 60px;
    align-items: center;
}

.tef-about-founder-img {
    height: 450px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    border: 6px solid rgba(255, 255, 255, 0.1); 
}

.tef-about-founder-wrapper .tef-about-badge {
    background: rgba(255, 255, 255, 0.15);
    color: var(--tef-about-light);
}

.tef-about-founder-quote {
    font-size: 1.6rem;
    font-weight: 500;
    line-height: 1.7;
    color: var(--tef-about-light); 
    position: relative;
    padding-left: 30px;
    margin-bottom: 30px;
    border-left: 5px solid #fffb00;
    font-style: italic;
}

.tef-about-founder-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--tef-about-light); 
}

.tef-about-founder-name span {
    display: block;
    font-size: 1rem;
    color: #ffcccc; 
    font-weight: 400;
    margin-top: 6px;
    letter-spacing: 0.5px;
}

@media (max-width: 992px) {
    .tef-about-founder-img {
        height: 380px;
    }
    .tef-about-founder-quote {
        font-size: 1.35rem;
        padding-left: 20px;
    }
}
/* #endregion */
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/* -------------------------------------------------------------
   5. OUR CRAFT & CARE 
------------------------------------------------------------- */
/* #region */

.tef-about-craft-container {
    padding: 100px 0;
    background-color: #fafafa; 
}

.tef-about-craft-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
}

.tef-about-craft-header h2 {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--tef-about-dark);
    margin: 15px 0;
}

.tef-about-craft-header h2 span {
    color: var(--tef-about-primary);
}

.tef-about-craft-header p {
    font-size: 1.05rem;
    color: var(--tef-about-muted);
}

.tef-about-craft-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.tef-about-craft-card {
    background: #ffffff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #eef0f2;
    transition: all 0.3s ease;
}

.tef-about-craft-icon {
    width: 60px;
    height: 60px;
    background: rgba(230, 0, 35, 0.05);
    color: var(--tef-about-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin: 0 auto 24px auto;
    transition: all 0.3s ease;
}

.tef-about-craft-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tef-about-dark);
    margin-bottom: 12px;
}

.tef-about-craft-card p {
    font-size: 0.95rem;
    color: #666666;
    line-height: 1.6;
}

.tef-about-craft-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
    border-color: rgba(230, 0, 35, 0.1);
}

.tef-about-craft-card:hover .tef-about-craft-icon {
    background: var(--tef-about-primary);
    color: #ffffff;
}

@media (max-width: 992px) {
    .tef-about-craft-grid {
        grid-template-columns: 1fr; 
        gap: 24px;
    }
    .tef-about-craft-header h2 {
        font-size: 2rem;
    }
}

/* #endregion */
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/* Responsive */
@media (max-width: 992px) {
    .tef-about-section { 
        padding: 60px 20px; 
    }
    .tef-about-hero-grid, .tef-about-innovation-block, .tef-about-founder-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .tef-about-philosophy-split-layout {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 60px 20px;
    }
    .tef-about-philosophy-sticky-title {
        position: static;
        text-align: center;
    }
    .tef-about-modern-row-card {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 30px;
    }
    .tef-about-hero-img-wrap { height: 380px; }
    .tef-about-hero-text h1 { font-size: 2.4rem; }
    .tef-about-innovation-text h2 { font-size: 2rem; }
    .tef-about-founder-img { height: 350px; }
}


/* ↓↓↓ ส่วนเสริม ↓↓↓↓ */
/* 
============================================    
    SAMGER CONTACT 
============================================
*/
/* #region */

.samgr-hero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: red;
    color: white;
    padding: 16px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
    text-transform: uppercase;
    transition: var(--samgr-transition);
    border-radius: var(--samgr-radius-sharp);
    box-shadow: 0 4px 15px rgba(228, 0, 43, 0.3);
}

.samgr-hero-btn:hover {
    background-color: black;
    color: white;
    transform: translateY(-3px);
}

.samgr-find-us-section {
    padding: 60px 20px;
    background-color: var(--samgr-red);
    text-align: center;
}

.samgr-find-us-content {
    /* max-width: 600px; */
    margin: 0 auto;
}

.samgr-find-us-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 15px;
}

.samgr-find-us-desc {
    font-size: 18px;
    color: white;
    margin-bottom: 30px;
}

.samgr-find-us-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.samgr-find-us-actions .samgr-hero-btn {
    margin: 0;
}

.samgr-find-us-actions .samgr-hero-btn i {
    margin-right: 8px;
}

.samgr-btn-fb {
    background-color: white;
    color: red;
}

.samgr-btn-map {
    background-color: #353535;
    color: #ffffff;
}

/* #endregion */
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