/* style/support.css */
/* body đã padding-top: var(--header-offset) từ shared.css */

:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-bg-card: #11271B;
    --color-bg-body: #08160F;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
    --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-support {
    font-family: 'Arial', sans-serif;
    color: var(--color-text-main); /* Deep green background, so light text */
    background-color: var(--color-bg-body);
}

.page-support__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-support__section-title {
    font-size: 2.5rem;
    color: var(--color-gold);
    text-align: center;
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(87, 227, 141, 0.4);
}

.page-support__section-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    line-height: 1.6;
}

.page-support__hero-section {
    position: relative;
    width: 100%;
    padding: 60px 0;
    padding-top: 10px; /* Small top padding, body handles header offset */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--color-bg-body);
}

.page-support__hero-content-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-support__hero-image {
    width: 100%;
    height: auto;
    max-width: 1200px; /* Adjust based on display area */
    border-radius: 15px;
    object-fit: cover;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: block;
}

.page-support__hero-text-content {
    text-align: center;
    max-width: 900px;
    width: 100%;
}

.page-support__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    color: var(--color-gold);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 0 15px rgba(87, 227, 141, 0.6);
}

.page-support__description {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__cta-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-support__btn-primary,
.page-support__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 1.05rem;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
    max-width: 100%;
}

.page-support__btn-primary {
    background: var(--btn-gradient);
    color: var(--color-text-main);
    border: 2px solid transparent;
    box-shadow: 0 5px 20px rgba(34, 199, 104, 0.4);
}

.page-support__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(34, 199, 104, 0.6);
}

.page-support__btn-secondary {
    background: transparent;
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
    box-shadow: 0 5px 20px rgba(242, 193, 78, 0.2);
}

.page-support__btn-secondary:hover {
    background: var(--color-gold);
    color: var(--color-bg-body);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(242, 193, 78, 0.4);
}

/* Channels Section */
.page-support__channels-section {
    padding: 80px 0;
    background-color: var(--color-bg-body);
}

.page-support__channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-support__channel-card {
    background-color: var(--color-bg-card);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid var(--color-border);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-support__channel-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-support__channel-icon {
    width: 100%;
    height: auto;
    max-width: 150px;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.page-support__channel-title {
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: 15px;
}

.page-support__channel-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 25px;
}

.page-support__btn-small {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* FAQ Section */
.page-support__faq-section {
    padding: 80px 0;
    background-color: var(--color-deep-green);
}

.page-support__faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.page-support__faq-item {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: background-color 0.3s ease;
}

.page-support__faq-item:hover {
    background-color: var(--color-divider);
}

.page-support__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--color-text-main);
    cursor: pointer;
    background-color: transparent;
    border: none;
    width: 100%;
    text-align: left;
    outline: none;
    transition: color 0.3s ease;
}

.page-support__faq-question:hover {
    color: var(--color-gold);
}

.page-support__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    color: var(--color-gold);
    transition: transform 0.3s ease;
}

.page-support__faq-item[open] .page-support__faq-toggle {
    transform: rotate(45deg);
}

.page-support__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-support__faq-item[open] .page-support__faq-answer {
    max-height: 500px; /* Arbitrarily large value for smooth transition */
    padding-top: 10px;
}

.page-support__faq-answer p {
    margin-bottom: 10px;
}

.page-support__faq-item summary {
    list-style: none;
}

.page-support__faq-item summary::-webkit-details-marker {
    display: none;
}

/* Guides Section */
.page-support__guides-section {
    padding: 80px 0;
    background-color: var(--color-bg-body);
}

.page-support__guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-support__guide-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-support__guide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-support__guide-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-support__guide-card .page-support__guide-title {
    padding: 20px 20px 0;
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--color-gold);
    line-height: 1.4;
    flex-grow: 1;
}

.page-support__guide-card .page-support__guide-title a {
    color: inherit;
    text-decoration: none;
}

.page-support__guide-card .page-support__guide-title a:hover {
    text-decoration: underline;
}

.page-support__guide-card .page-support__guide-text {
    padding: 10px 20px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.page-support__guide-card .page-support__btn-secondary {
    margin: 20px;
    align-self: flex-start;
}

/* Contact Form Section */
.page-support__contact-form-section {
    padding: 80px 0;
    background-color: var(--color-deep-green);
}

.page-support__contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-bg-card);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid var(--color-border);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.page-support__form-group {
    margin-bottom: 25px;
}

.page-support__form-label {
    display: block;
    font-size: 1.1rem;
    color: var(--color-text-main);
    margin-bottom: 10px;
    font-weight: bold;
}

.page-support__form-input,
.page-support__form-textarea {
    width: 100%;
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-support__form-input::placeholder,
.page-support__form-textarea::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.7;
}

.page-support__form-input:focus,
.page-support__form-textarea:focus {
    border-color: var(--color-glow);
    box-shadow: 0 0 0 3px rgba(87, 227, 141, 0.3);
    outline: none;
}

.page-support__form-textarea {
    resize: vertical;
}

.page-support__submit-button {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    border-radius: 50px;
    background: var(--btn-gradient);
    color: var(--color-text-main);
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(34, 199, 104, 0.4);
}

.page-support__submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(34, 199, 104, 0.6);
}

.page-support__cta-bottom {
    text-align: center;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--color-divider);
}

.page-support__cta-text {
    font-size: 1.2rem;
    color: var(--color-text-main);
    margin-bottom: 25px;
    font-weight: bold;
}

.page-support__download-btn {
    padding: 18px 40px;
    font-size: 1.2rem;
    border-radius: 50px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-support__main-title {
        font-size: clamp(2rem, 5vw, 3rem);
    }
    .page-support__section-title {
        font-size: 2rem;
    }
    .page-support__channels-grid,
    .page-support__guides-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-support {
        font-size: 16px;
        line-height: 1.6;
    }
    .page-support__hero-section {
        padding: 40px 0;
        padding-top: 10px !important;
    }
    .page-support__hero-image {
        margin-bottom: 30px;
    }
    .page-support__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    .page-support__description {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    .page-support__cta-group {
        flex-direction: column;
        gap: 15px;
    }
    .page-support__btn-primary,
    .page-support__btn-secondary,
    .page-support a[class*="button"],
    .page-support a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        padding: 12px 20px !important;
        font-size: 1rem !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-support__section-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    .page-support__section-description {
        font-size: 1rem;
        margin-bottom: 40px;
    }
    .page-support__channels-section,
    .page-support__faq-section,
    .page-support__guides-section,
    .page-support__contact-form-section {
        padding: 60px 0;
    }
    .page-support__channels-grid,
    .page-support__guides-grid {
        grid-template-columns: 1fr;
    }
    .page-support__channel-card,
    .page-support__guide-card,
    .page-support__faq-item,
    .page-support__contact-form {
        padding: 25px;
        box-sizing: border-box !important;
        max-width: 100% !important;
        width: 100% !important;
        margin-left: auto;
        margin-right: auto;
    }
    .page-support__faq-question {
        font-size: 1.1rem;
        padding: 18px 20px;
    }
    .page-support__faq-answer {
        font-size: 0.95rem;
        padding: 0 20px 18px;
    }
    .page-support__guide-image {
        height: 180px;
    }
    .page-support__guide-card .page-support__guide-title {
        font-size: 1.2rem;
    }
    .page-support__guide-card .page-support__btn-secondary {
        margin: 15px 20px;
    }
    .page-support__form-label {
        font-size: 1rem;
    }
    .page-support__form-input,
    .page-support__form-textarea {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    .page-support__submit-button,
    .page-support__download-btn {
        padding: 14px 25px !important;
        font-size: 1rem !important;
    }
    .page-support__cta-text {
        font-size: 1.1rem;
    }

    /* Ensure all images are responsive */
    .page-support img {
      max-width: 100% !important;
      width: 100% !important;
      height: auto !important;
      display: block !important;
    }
    .page-support__hero-content-wrapper,
    .page-support__container,
    .page-support__channels-section,
    .page-support__faq-section,
    .page-support__guides-section,
    .page-support__contact-form-section,
    .page-support__channel-card,
    .page-support__guide-card,
    .page-support__faq-item,
    .page-support__contact-form,
    .page-support__cta-group,
    .page-support__button-group,
    .page-support__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden !important;
    }
    .page-support__hero-content-wrapper {
        padding-left: 0;
        padding-right: 0;
    }
}

@media (max-width: 480px) {
    .page-support__main-title {
        font-size: clamp(1.6rem, 7vw, 2.2rem);
    }
    .page-support__section-title {
        font-size: 1.6rem;
    }
    .page-support__faq-question {
        font-size: 1rem;
        padding: 15px 18px;
    }
    .page-support__faq-answer {
        font-size: 0.9rem;
        padding: 0 18px 15px;
    }
    .page-support__channel-title,
    .page-support__guide-card .page-support__guide-title {
        font-size: 1.3rem;
    }
}