/* ==================================
   GLOBAL RESET & FONT SYSTEM
================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans Thai';
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.75;
    letter-spacing: -0.01em;
    color: #0f172a;
    background: linear-gradient(120deg, #f4f9f4, #edf1ef, #ffffff);
}

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

a {
    color: inherit;
}

/* ==================================
   TYPOGRAPHY
================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 .65em;
    line-height: 1.18;
    letter-spacing: -0.025em;
}

h1 {
    font-size: clamp(2.1rem, 5vw, 2.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.45rem, 3vw, 2rem);
    font-weight: 700;
}

h4 {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-weight: 600;
}

h5 {
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    font-weight: 600;
}

h6 {
    font-size: clamp(.95rem, 1.5vw, 1.1rem);
    font-weight: 600;
}

p {
    font-size: 1rem;
    line-height: 1.85;
    margin: 0 0 1.2em;
}

.lead {
    font-size: clamp(1.08rem, 1.5vw, 1.28rem);
    line-height: 1.9;
}


a {
    text-decoration: none;
}

/* =========================
   HERO
========================= */

.about-section {
    padding: 100px 20px;
    text-align: center;
    background:
        radial-gradient(circle at center,
            rgba(52, 224, 161, .08),
            transparent 40%),
        #fff;
}

.about-inner {
    max-width: 900px;
    margin: auto;
}

.about-section h2 {
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.3;
    color: #061712;
    margin: 20px 0;
}

.about-desc {
    max-width: 760px;
    margin: 0 auto;
    color: #64748b;
    font-size: 16px;
    line-height: 1.9;
}

.about-grid {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.about-item {
    padding: 24px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid rgba(52, 224, 161, .18);
    box-shadow: 0 15px 40px rgba(52, 224, 161, .08);
}

.about-item strong {
    display: block;
    font-size: 30px;
    color: #34E0A1;
    font-weight: 900;
}

.about-item span {
    display: block;
    margin-top: 8px;
    color: #64748b;
    font-size: 13px;
}

.about-contact {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
}

.contact-item {
    padding: 12px 18px;
    border-radius: 999px;
    background: rgba(52, 224, 161, .08);
    border: 1px solid rgba(52, 224, 161, .15);
    font-size: 14px;
    font-weight: 700;
}

.about-buttons {
    margin-top: 32px;
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.about-btn-primary,
.about-btn-secondary {
    min-height: 52px;
    padding: 0 24px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 800;
}

.about-btn-primary {
    background: linear-gradient(135deg, #34E0A1, #1CCB8A);
    color: #03100C;
}

.about-btn-secondary {
    background: #061712;
    color: #fff;
}

@media(max-width:768px) {

    .about-section {
        padding: 70px 16px;
    }

    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-desc {
        font-size: 14px;
    }

}


.pain-buttons {
    margin-top: 50px;
    display: flex;
    gap: 20px;
    justify-content: center;
    text-decoration: none;
}

@media (max-width: 640px) {
    .pain-buttons {
        margin-top: 50px;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: row;
        gap: 16px;
        flex-wrap: wrap;
        text-decoration: none;
    }
}

.pain-cta1 {
    position: relative;
    width: 100%;
    max-width: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 22px 28px;
    border-radius: 24px;
    background: linear-gradient(135deg,
            #4ef0b4,
            #34E0A1);
    color: #000;
    font-size: 20px;
    font-weight: 800;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .25);
    box-shadow:
        0 18px 40px rgba(52, 224, 161, .28),
        inset 0 1px 0 rgba(255, 255, 255, .35);
    transition: .3s ease;
    animation: pulseGlow 1.8s infinite;
    text-decoration: none;
}

.pain-cta1 svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    object-fit: contain;
    margin-right: 12px;
}



.pain-cta1:hover {
    transform: translateY(-3px) scale(1.01);
    box-shadow:
        0 24px 55px rgba(52, 224, 161, .38),
        inset 0 1px 0 rgba(255, 255, 255, .5);
}

.pain-cta1::before {
    content: "";
    position: absolute;
    top: 0;
    left: -120%;
    width: 70%;
    height: 100%;
    background:
        linear-gradient(120deg,
            transparent,
            rgba(255, 255, 255, 0.55),
            transparent);

    transform: skewX(-20deg);
    animation: shine 2.8s infinite;
}

.pain-cta2 {
    position: relative;
    width: 100%;
    max-width: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    padding: 22px 28px;
    border-radius: 24px;

    background: linear-gradient(135deg,
            #FFB84D,
            #FF8A00);
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .25);
    box-shadow:
        0 12px 30px rgba(255, 138, 0, .25),
        0 24px 60px rgba(255, 138, 0, .15),
        inset 0 1px 0 rgba(255, 255, 255, .3);

    transition: .3s ease;
    animation: pulseGlow 1.8s infinite;
}

.pain-cta2:hover {
    transform: translateY(-4px);
    box-shadow:
        0 18px 40px rgba(255, 138, 0, .35),
        0 35px 80px rgba(255, 138, 0, .22),
        inset 0 1px 0 rgba(255, 255, 255, .45);
}

.pain-cta2::before {
    content: "";
    position: absolute;

    top: 0;
    left: -120%;

    width: 70%;
    height: 100%;

    background:
        linear-gradient(120deg,
            transparent,
            rgba(255, 255, 255, .55),
            transparent);

    animation: shine 3s infinite;
}

.pain-cta2:hover {
    transform: translateY(-4px);
    box-shadow:
        0 18px 40px rgba(255, 138, 0, .35),
        0 35px 80px rgba(255, 138, 0, .22),
        inset 0 1px 0 rgba(255, 255, 255, .45);
}

.pain-cta2::before {
    content: "";
    position: absolute;
    top: 0;
    left: -120%;
    width: 70%;
    height: 100%;
    background: linear-gradient(120deg,
            transparent,
            rgba(255, 255, 255, 0.55),
            transparent);

    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        left: -120%;
    }

    100% {
        left: 150%;
    }
}

.contact-item-about {
    display: flex;
    justify-content: center;
    align-items: center;

    .icon-btn {
        margin-right: 14px;
    }
}