/**
 * Concerns Section Styles
 * 숨카(SUMCAR) 프로젝트 - 고객 고민 섹션
 */

/* ========================================
   Concerns Section
   ======================================== */
.concerns {
    position: relative;
    width: 100%;
    min-height: 100vh;
    background: #000000;
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 100%);
    padding: 80px 24px;
    padding: var(--space-80, 80px) var(--space-24, 24px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.concerns__container {
    position: relative;
    max-width: 1200px;
    max-width: var(--container-max-width, 1200px);
    width: 100%;
    margin: 0 auto;
}

/* ========================================
   Questions Grid
   ======================================== */
.concerns__questions {
    position: relative;
    min-height: 360px;
    margin-bottom: 60px;
    margin-bottom: var(--space-60, 60px);
}

.concerns__question {
    position: absolute;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
    font-weight: var(--fw-regular, 400);
    line-height: 1.5;
    animation: fadeInFloat 1s ease-out;
    animation-fill-mode: both;
    white-space: nowrap;
}

/* 질문별 위치 및 스타일링 */
.concerns__question:nth-child(1) {
    top: 0;
    left: 30%;
    font-size: 28px;
    color: rgba(255, 255, 255, 0.8);
    animation-delay: 0.1s;
}

.concerns__question:nth-child(2) {
    top: 50px;
    right: 26%;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    animation-delay: 0.2s;
}

.concerns__question:nth-child(3) {
    top: 80px;
    left: 5%;
    font-size: 34px;
    font-weight: 700;
    color: rgb(255, 255, 255);
    animation-delay: 0.3s;
}

.concerns__question:nth-child(4) {
    top: 140px;
    right: 30%;
    font-size: 24px;
    color: rgba(255, 255, 255, 0.8);
    animation-delay: 0.4s;
}

.concerns__question:nth-child(5) {
    top: 180px;
    left: 20%;
    font-size: 32px;
    color: rgba(255, 255, 255, 0.65);
    animation-delay: 0.5s;
}

.concerns__question:nth-child(6) {
    top: 206px;
    right: 8%;
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    animation-delay: 0.6s;
}

.concerns__question:nth-child(7) {
    top: 240px;
    right: 15%;
    font-size: 34px;
    font-weight: 700;
    color: rgba(255, 255, 255);
    animation-delay: 0.7s;
}

.concerns__question:nth-child(8) {
    top: 290px;
    left: 20%;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.55);
    animation-delay: 0.8s;
}

.concerns__question:nth-child(9) {
    top: 340px;
    left: 50%;
    font-size: 34px;
    font-weight: 700;
    color: rgba(255, 255, 255);
    animation: fadeInFloatCenter 1s ease-out 0.9s;
    animation-fill-mode: both;
}

/* ========================================
   Dots
   ======================================== */
.concerns__dots {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    gap: var(--space-16, 16px);
    margin-top: 0;
    margin-bottom: 10px;
    margin-bottom: var(--space-10, 10px);
    animation: concernsFadeInUp 1s ease-out 0.9s;
    animation-fill-mode: both;
}

.concerns__dot {
    width: 6px;
    height: 6px;
    background-color: rgba(255, 255, 255);
    border-radius: 50%;
    animation: dotPulse 1.5s ease-in-out infinite;
}

.concerns__dot:nth-child(2) {
    animation-delay: 0.2s;
}

.concerns__dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes dotPulse {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* ========================================
   Conclusion
   ======================================== */
.concerns__conclusion {
    text-align: center;
    margin-bottom: 80px;
    margin-bottom: var(--space-80, 80px);
}

.concerns__conclusion-text {
    font-size: 64px;
    font-weight: 700;
    font-weight: var(--fw-bold, 700);
    color: #FFFFFF;
    color: var(--c-text-light, #FFFFFF);
    line-height: 1.3;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.15em;
    animation: concernsFadeInUp 1s ease-out 1s;
    animation-fill-mode: both;
}

.concerns__check-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.concerns__check-image {
    width: 64px;
    height: 64px;
    display: block;
}

/* ========================================
   Scroll Down
   ======================================== */
.concerns__scroll {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    gap: var(--space-16, 16px);
    margin-top: 80px;
    margin-top: var(--space-80, 80px);
    animation: concernsFadeInUp 1.2s ease-out 1.2s;
    animation-fill-mode: both;
}

.concerns__scroll-icon {
    animation: scrollBounce 2s ease-in-out infinite;
}

.concerns__scroll-icon .concerns__scroll-image {
    width: 120px;
    height: auto;
    display: block;
}

.concerns__scroll-text {
    font-size: 14px;
    font-size: var(--fs-small, 14px);
    font-weight: 600;
    font-weight: var(--fw-semibold, 600);
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInFloat {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInFloatCenter {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes concernsFadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Tablet Responsive
   ======================================== */
@media (max-width: 991px) {
    .concerns {
        padding: 60px 32px;
        padding: var(--space-60, 60px) var(--space-32, 32px);
    }

    .concerns__questions {
        min-height: 600px;
    }

    .concerns__question:nth-child(1) {
        top: 0;
        left: 5%;
        font-size: 22px;
    }

    .concerns__question:nth-child(2) {
        top: 60px;
        right: 10%;
        font-size: 13px;
    }

    .concerns__question:nth-child(3) {
        top: 120px;
        left: 5%;
        font-size: 18px;
    }

    .concerns__question:nth-child(4) {
        top: 200px;
        right: 5%;
        font-size: 15px;
    }

    .concerns__question:nth-child(5) {
        top: 280px;
        left: 10%;
        font-size: 14px;
    }

    .concerns__question:nth-child(6) {
        top: 340px;
        right: 10%;
        font-size: 14px;
    }

    .concerns__question:nth-child(7) {
        top: 420px;
        left: 5%;
        font-size: 17px;
    }

    .concerns__question:nth-child(8) {
        top: 480px;
        right: 5%;
        font-size: 12px;
    }

    .concerns__question:nth-child(9) {
        top: 560px;
        left: 15%;
        font-size: 14px;
    }

    .concerns__dots {
        margin-top: 48px;
        margin-top: var(--space-48, 48px);
        margin-bottom: 32px;
        margin-bottom: var(--space-32, 32px);
    }

    .concerns__conclusion {
        margin-bottom: 60px;
        margin-bottom: var(--space-60, 60px);
    }

    .concerns__conclusion-text {
        font-size: 32px;
        font-size: var(--fs-h2, 32px);
        gap: 0.15em;
    }

    .concerns__check-image {
        width: 56px;
        height: 56px;
    }

    .concerns__scroll {
        margin-top: 48px;
        margin-top: var(--space-48, 48px);
    }
}

/* ========================================
   Mobile Responsive
   ======================================== */
@media (max-width: 767px) {
    .concerns {
        padding: 48px 16px;
        padding: var(--space-48, 48px) var(--space-16, 16px);
        min-height: auto;
    }

    .concerns__container {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .concerns__questions {
        min-height: auto;
        position: static;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 24px;
        gap: var(--space-24, 24px);
        margin-bottom: 48px;
        margin-bottom: var(--space-48, 48px);
        width: 100%;
    }

    .concerns__question {
        position: static !important;
        max-width: 100% !important;
        width: 100% !important;
        white-space: normal !important;
        text-align: center;
        padding: 0;
        margin: 0 auto;
        animation: concernsFadeInUp 0.6s ease-out;
        left: auto !important;
        right: auto !important;
    }

    .concerns__question:nth-child(1) {
        font-size: 20px;
        animation-delay: 0.1s;
    }
    .concerns__question:nth-child(2) {
        font-size: 14px;
        animation-delay: 0.15s;
    }
    .concerns__question:nth-child(3) {
        font-size: 17px;
        animation-delay: 0.2s;
    }
    .concerns__question:nth-child(4) {
        font-size: 15px;
        animation-delay: 0.25s;
    }
    .concerns__question:nth-child(5) {
        font-size: 14px;
        animation-delay: 0.3s;
    }
    .concerns__question:nth-child(6) {
        font-size: 14px;
        animation-delay: 0.35s;
    }
    .concerns__question:nth-child(7) {
        font-size: 16px;
        animation-delay: 0.4s;
    }
    .concerns__question:nth-child(8) {
        font-size: 13px;
        animation-delay: 0.45s;
    }
    .concerns__question:nth-child(9) {
        font-size: 14px;
        animation-delay: 0.5s;
        transform: none !important;
    }

    .concerns__dots {
        margin-top: 32px;
        margin-top: var(--space-32, 32px);
        margin-bottom: 32px;
        margin-bottom: var(--space-32, 32px);
    }

    .concerns__conclusion {
        margin-bottom: 48px;
        margin-bottom: var(--space-48, 48px);
    }

    .concerns__conclusion-text {
        font-size: 24px;
        font-size: var(--fs-h3, 24px);
        gap: 0.15em;
    }

    .concerns__check-image {
        width: 48px;
        height: 48px;
    }

    .concerns__scroll {
        margin-top: 32px;
        margin-top: var(--space-32, 32px);
    }

    .concerns__scroll-icon .concerns__scroll-image {
        width: 100px;
        height: auto;
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .concerns__question,
    .concerns__dots,
    .concerns__dot,
    .concerns__conclusion-text,
    .concerns__scroll,
    .concerns__scroll-icon {
        animation: none;
    }
}