/* ============================================================
   COMPONENTS.CSS — EcoBuild Studio
   Buttons, Cards, Forms, Badges, Breadcrumbs, Accordion,
   Tabs, Modals, Pagination, Testimonial, Tooltips, etc.
   ============================================================ */

/* ===================== BUTTONS ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.8em 2em;
    font-family: var(--ff-body);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-wide);
    line-height: 1;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--dur-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
    text-transform: capitalize;
}
.btn i { font-size: 0.9em; }

/* Button Sizes */
.btn--sm  { padding: 0.6em 1.4em; font-size: var(--fs-xs); }
.btn--lg  { padding: 1em 2.6em; font-size: var(--fs-base); }
.btn--xl  { padding: 1.15em 3em; font-size: var(--fs-lg); }

/* Primary Button */
.btn--primary {
    background: var(--clr-primary);
    color: var(--clr-white);
    border-color: var(--clr-primary);
}
.btn--primary:hover {
    background: var(--clr-primary-dark);
    border-color: var(--clr-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--clr-primary-rgb), 0.35);
}

/* Secondary Button */
.btn--secondary {
    background: var(--clr-secondary);
    color: var(--clr-white);
    border-color: var(--clr-secondary);
}
.btn--secondary:hover {
    background: var(--clr-secondary-dark);
    border-color: var(--clr-secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--clr-secondary-rgb), 0.3);
}

/* Outline Button */
.btn--outline {
    background: transparent;
    color: var(--clr-primary);
    border-color: var(--clr-primary);
}
.btn--outline:hover {
    background: var(--clr-primary);
    color: var(--clr-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--clr-primary-rgb), 0.3);
}

/* White Outline */
.btn--outline-white {
    background: transparent;
    color: var(--clr-white);
    border-color: rgba(255,255,255,0.5);
}
.btn--outline-white:hover {
    background: var(--clr-white);
    color: var(--clr-primary-dark);
    border-color: var(--clr-white);
    transform: translateY(-2px);
}

/* Ghost */
.btn--ghost {
    background: transparent;
    color: var(--clr-primary);
    border-color: transparent;
    padding-inline: var(--space-sm);
}
.btn--ghost:hover {
    background: rgba(var(--clr-primary-rgb), 0.08);
}

/* Accent */
.btn--accent {
    background: var(--clr-accent);
    color: var(--clr-white);
    border-color: var(--clr-accent);
}
.btn--accent:hover {
    background: var(--clr-accent-dark);
    border-color: var(--clr-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--clr-accent-rgb), 0.3);
}

/* Full Width */
.btn--block { width: 100%; }

/* Icon Only Button */
.btn--icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
}
.btn--icon.btn--sm { width: 36px; height: 36px; }
.btn--icon.btn--lg { width: 52px; height: 52px; }

/* Button with ripple effect */
.btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.35);
    transform: scale(0);
    animation: ripple-effect 0.6s ease-out;
    pointer-events: none;
}
@keyframes ripple-effect {
    to { transform: scale(4); opacity: 0; }
}


/* ===================== CARDS ===================== */
.card {
    background: var(--clr-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--clr-border-light);
}
.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.card__img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}
.card__body {
    padding: var(--space-lg);
}
.card__title {
    font-family: var(--ff-heading);
    font-size: var(--fs-h5);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
    margin-bottom: var(--space-xs);
    line-height: var(--lh-snug);
}
.card__text {
    font-size: var(--fs-sm);
    color: var(--clr-text-muted);
    line-height: var(--lh-normal);
    margin-bottom: var(--space-md);
}
.card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
}
.card__meta i { color: var(--clr-primary); }

/* Glassmorphism Card */
.card--glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}

/* Card Hover Overlay */
.card--overlay {
    position: relative;
}
.card--overlay .card__overlay {
    position: absolute;
    inset: 0;
    background: var(--clr-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--dur-normal) ease;
}
.card--overlay:hover .card__overlay {
    opacity: 1;
}

/* Icon Card */
.card--icon {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
}
.card--icon .card__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    border-radius: var(--radius-lg);
    background: rgba(var(--clr-primary-rgb), 0.1);
    color: var(--clr-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition);
}
.card--icon:hover .card__icon {
    background: var(--clr-primary);
    color: var(--clr-white);
    transform: scale(1.08);
}


/* ===================== FORMS ===================== */
.form-group {
    margin-bottom: var(--space-md);
    position: relative;
}
.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-text);
    margin-bottom: var(--space-2xs);
}
.form-label .required {
    color: var(--clr-error);
    margin-left: 2px;
}
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75em 1em;
    font-size: var(--fs-base);
    color: var(--clr-text);
    background: var(--clr-bg-card);
    border: 1.5px solid var(--clr-border);
    border-radius: var(--radius-md);
    transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(var(--clr-primary-rgb), 0.12);
}
.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--clr-text-muted);
}
.form-textarea {
    resize: vertical;
    min-height: 120px;
}
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A9B8E' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1em center;
    padding-right: 2.5em;
}

/* Floating Label */
.form-floating {
    position: relative;
}
.form-floating .form-input,
.form-floating .form-textarea {
    padding-top: 1.5em;
    padding-bottom: 0.5em;
}
.form-floating .form-label {
    position: absolute;
    top: 50%;
    left: 1em;
    transform: translateY(-50%);
    font-size: var(--fs-base);
    color: var(--clr-text-muted);
    pointer-events: none;
    transition: all var(--dur-fast) ease;
    margin-bottom: 0;
}
.form-floating .form-textarea ~ .form-label {
    top: 1.2em;
    transform: none;
}
.form-floating .form-input:focus ~ .form-label,
.form-floating .form-input:not(:placeholder-shown) ~ .form-label,
.form-floating .form-textarea:focus ~ .form-label,
.form-floating .form-textarea:not(:placeholder-shown) ~ .form-label {
    top: 0.55em;
    transform: none;
    font-size: var(--fs-xs);
    color: var(--clr-primary);
}

/* Validation States */
.form-input.is-valid   { border-color: var(--clr-success); }
.form-input.is-invalid { border-color: var(--clr-error); }
.form-error {
    font-size: var(--fs-xs);
    color: var(--clr-error);
    margin-top: var(--space-3xs);
}
.form-hint {
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
    margin-top: var(--space-3xs);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-xs);
    cursor: pointer;
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--clr-primary);
    margin-top: 2px;
    flex-shrink: 0;
    cursor: pointer;
}

/* File Upload */
.form-file {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border: 2px dashed var(--clr-border);
    border-radius: var(--radius-lg);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--dur-fast) ease, background var(--dur-fast) ease;
    flex-direction: column;
}
.form-file:hover {
    border-color: var(--clr-primary);
    background: rgba(var(--clr-primary-rgb), 0.03);
}
.form-file input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}
.form-file__icon {
    font-size: 2rem;
    color: var(--clr-primary);
    margin-bottom: var(--space-xs);
}
.form-file__text {
    font-size: var(--fs-sm);
    color: var(--clr-text-muted);
}
.form-file__text strong {
    color: var(--clr-primary);
}


/* ===================== BADGES ===================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.3em 0.85em;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-full);
    line-height: 1.2;
    white-space: nowrap;
}
.badge--primary   { background: rgba(var(--clr-primary-rgb),0.12); color: var(--clr-primary); }
.badge--secondary { background: rgba(var(--clr-secondary-rgb),0.15); color: var(--clr-secondary-dark); }
.badge--accent    { background: rgba(var(--clr-accent-rgb),0.12); color: var(--clr-accent-dark); }
.badge--success   { background: rgba(34,168,103,0.12); color: var(--clr-success); }
.badge--warning   { background: rgba(229,168,50,0.12); color: var(--clr-warning); }
.badge--error     { background: rgba(217,68,68,0.12); color: var(--clr-error); }


/* ===================== BREADCRUMBS ===================== */
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
}
.breadcrumb__item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: rgba(255,255,255,0.6);
}
.breadcrumb__item a {
    color: rgba(255,255,255,0.6);
    transition: color var(--dur-fast) ease;
}
.breadcrumb__item a:hover { color: var(--clr-white); }
.breadcrumb__item.active { color: var(--clr-white); font-weight: var(--fw-medium); }
.breadcrumb__sep { color: rgba(255,255,255,0.3); font-size: 0.7em; }


/* ===================== ACCORDION / FAQ ===================== */
.accordion {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}
.accordion__item {
    border: 1px solid var(--clr-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.accordion__item.active {
    border-color: var(--clr-primary);
    box-shadow: 0 2px 12px rgba(var(--clr-primary-rgb), 0.08);
}
.accordion__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    background: var(--clr-bg-card);
    transition: background var(--dur-fast) ease;
    user-select: none;
}
.accordion__item.active .accordion__header {
    background: rgba(var(--clr-primary-rgb), 0.04);
}
.accordion__question {
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
    line-height: var(--lh-snug);
}
.accordion__icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: rgba(var(--clr-primary-rgb), 0.1);
    color: var(--clr-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
    transition: transform var(--dur-normal) var(--ease-out), background var(--dur-fast) ease;
}
.accordion__item.active .accordion__icon {
    transform: rotate(180deg);
    background: var(--clr-primary);
    color: var(--clr-white);
}
.accordion__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--dur-slow) var(--ease-out);
}
.accordion__item.active .accordion__body {
    max-height: 500px;
}
.accordion__answer {
    padding: 0 var(--space-lg) var(--space-lg);
    font-size: var(--fs-sm);
    color: var(--clr-text-secondary);
    line-height: var(--lh-relaxed);
}


/* ===================== TABS ===================== */
.tabs {
    display: flex;
    flex-direction: column;
}
.tabs__nav {
    display: flex;
    gap: var(--space-xs);
    border-bottom: 2px solid var(--clr-border-light);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.tabs__nav::-webkit-scrollbar { display: none; }
.tabs__btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-text-muted);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
    cursor: pointer;
}
.tabs__btn:hover { color: var(--clr-text); }
.tabs__btn.active {
    color: var(--clr-primary);
    border-bottom-color: var(--clr-primary);
    font-weight: var(--fw-semibold);
}
.tabs__content { padding-top: var(--space-lg); }
.tabs__panel { display: none; }
.tabs__panel.active { display: block; }

/* Pill Tabs variant */
.tabs__nav--pills {
    border-bottom: none;
    gap: var(--space-xs);
    background: var(--clr-bg-alt);
    padding: var(--space-3xs);
    border-radius: var(--radius-full);
    width: fit-content;
}
.tabs__nav--pills .tabs__btn {
    border-bottom: none;
    margin-bottom: 0;
    border-radius: var(--radius-full);
    padding: var(--space-xs) var(--space-md);
}
.tabs__nav--pills .tabs__btn.active {
    background: var(--clr-bg-card);
    box-shadow: var(--shadow-sm);
    color: var(--clr-primary);
}

/* Filter Buttons (Portfolio) */
.filter-btns {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
    margin-bottom: var(--space-xl);
}
.filter-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-text-muted);
    background: transparent;
    border: 1.5px solid var(--clr-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--dur-fast) ease;
}
.filter-btn:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
}
.filter-btn.active {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: var(--clr-white);
}


/* ===================== MODAL ===================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-normal) ease, visibility var(--dur-normal) ease;
}
.modal.active {
    opacity: 1;
    visibility: visible;
}
.modal__backdrop {
    position: absolute;
    inset: 0;
    background: var(--clr-overlay-heavy);
    z-index: 1;
}
.modal__content {
    position: relative;
    z-index: 2;
    background: var(--clr-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 640px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.92) translateY(20px);
    transition: transform var(--dur-normal) var(--ease-out);
}
.modal.active .modal__content {
    transform: scale(1) translateY(0);
}
.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--clr-border-light);
}
.modal__title {
    font-family: var(--ff-heading);
    font-size: var(--fs-h4);
    font-weight: var(--fw-semibold);
}
.modal__close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-text-muted);
    transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
    cursor: pointer;
}
.modal__close:hover {
    background: var(--clr-bg-alt);
    color: var(--clr-text);
}
.modal__body { padding: var(--space-lg); }
.modal__footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: 1px solid var(--clr-border-light);
}

/* Video Modal */
.modal--video .modal__content {
    max-width: 900px;
    background: var(--clr-black);
    padding: 0;
    border-radius: var(--radius-lg);
}
.modal--video .video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
}
.modal--video .video-wrapper iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
}

/* Success Modal */
.modal--success .modal__content {
    text-align: center;
    max-width: 440px;
    padding: var(--space-2xl);
}
.modal--success .success-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    background: rgba(34,168,103,0.12);
    color: var(--clr-success);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--space-md);
}


/* ===================== PAGINATION ===================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    margin-top: var(--space-2xl);
}
.pagination__btn {
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-text-secondary);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--dur-fast) ease;
}
.pagination__btn:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
}
.pagination__btn.active {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: var(--clr-white);
}
.pagination__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}


/* ===================== STAR RATING ===================== */
.star-rating {
    display: inline-flex;
    gap: 2px;
    color: var(--clr-secondary);
    font-size: 0.9rem;
}
.star-rating .star--empty { color: var(--clr-border); }


/* ===================== TESTIMONIAL ===================== */
.testimonial-card {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
}
.testimonial-card__quote {
    font-size: 3rem;
    color: rgba(var(--clr-primary-rgb), 0.15);
    font-family: Georgia, serif;
    line-height: 1;
    margin-bottom: var(--space-sm);
}
.testimonial-card__text {
    font-size: var(--fs-base);
    color: var(--clr-text-secondary);
    line-height: var(--lh-relaxed);
    font-style: italic;
    margin-bottom: var(--space-lg);
}
.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.testimonial-card__avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    object-fit: cover;
    background: var(--clr-bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary);
    font-weight: var(--fw-bold);
    font-size: var(--fs-lg);
    flex-shrink: 0;
}
.testimonial-card__name {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
}
.testimonial-card__role {
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
}


/* ===================== PRICING TABLE ===================== */
.pricing-card {
    background: var(--clr-bg-card);
    border: 1.5px solid var(--clr-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}
.pricing-card--featured {
    border-color: var(--clr-primary);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--clr-primary);
}
.pricing-card__badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-3xs) var(--space-md);
    background: var(--clr-primary);
    color: var(--clr-white);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    letter-spacing: var(--ls-wide);
}
.pricing-card__name {
    font-family: var(--ff-heading);
    font-size: var(--fs-h4);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
    margin-bottom: var(--space-xs);
}
.pricing-card__price {
    font-family: var(--ff-heading);
    font-size: var(--fs-display);
    font-weight: var(--fw-bold);
    color: var(--clr-primary);
    margin-bottom: var(--space-3xs);
    line-height: 1;
}
.pricing-card__price span {
    font-size: var(--fs-sm);
    font-weight: var(--fw-regular);
    color: var(--clr-text-muted);
}
.pricing-card__desc {
    font-size: var(--fs-sm);
    color: var(--clr-text-muted);
    margin-bottom: var(--space-lg);
}
.pricing-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    text-align: left;
}
.pricing-card__feature {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
    color: var(--clr-text-secondary);
}
.pricing-card__feature i {
    color: var(--clr-success);
    font-size: 0.85rem;
    flex-shrink: 0;
}


/* ===================== SOCIAL SHARE ===================== */
.social-share {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}
.social-share__btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    background: var(--clr-bg-alt);
    transition: var(--transition);
}
.social-share__btn:hover {
    color: var(--clr-white);
    transform: translateY(-2px);
}
.social-share__btn--facebook:hover  { background: #1877F2; }
.social-share__btn--twitter:hover   { background: #1DA1F2; }
.social-share__btn--linkedin:hover  { background: #0A66C2; }
.social-share__btn--whatsapp:hover  { background: #25D366; }
.social-share__btn--pinterest:hover { background: #E60023; }


/* ===================== AUTHOR CARD ===================== */
.author-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--clr-bg-alt);
    border-radius: var(--radius-xl);
}
.author-card__avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}
.author-card__name {
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    color: var(--clr-text);
    margin-bottom: 2px;
}
.author-card__bio {
    font-size: var(--fs-sm);
    color: var(--clr-text-muted);
    line-height: var(--lh-normal);
}


/* ===================== TAG CLOUD ===================== */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}
.tag {
    padding: var(--space-3xs) var(--space-sm);
    font-size: var(--fs-xs);
    color: var(--clr-text-secondary);
    background: var(--clr-bg-alt);
    border-radius: var(--radius-full);
    transition: all var(--dur-fast) ease;
}
.tag:hover {
    background: var(--clr-primary);
    color: var(--clr-white);
}


/* ===================== TOOLTIP ===================== */
[data-tooltip] {
    position: relative;
}
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-3xs) var(--space-xs);
    font-size: var(--fs-xs);
    color: var(--clr-white);
    background: var(--clr-black);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--dur-fast) ease;
    z-index: var(--z-tooltip);
}
[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}


/* ===================== RESPONSIVE — COMPONENTS ===================== */
@media (max-width: 576px) {
    .btn--xl { padding: 0.9em 2em; font-size: var(--fs-base); }
    .accordion__header { padding: var(--space-sm) var(--space-md); }
    .accordion__answer { padding: 0 var(--space-md) var(--space-md); }
    .tabs__nav { gap: 0; }
    .tabs__btn { padding: var(--space-xs) var(--space-sm); font-size: var(--fs-xs); }
    .filter-btns { gap: var(--space-3xs); }
    .filter-btn { padding: var(--space-3xs) var(--space-sm); font-size: var(--fs-xs); }
    .modal__content { border-radius: var(--radius-lg); margin: var(--space-sm); }
    .testimonial-card { padding: var(--space-lg); }
    .pricing-card { padding: var(--space-lg); }
    .author-card { flex-direction: column; text-align: center; }
}

@media (max-width: 768px) {
    .tabs__nav--pills { width: 100%; overflow-x: auto; }
}

@media (min-width: 2561px) {
    .btn { padding: 1em 2.4em; font-size: var(--fs-base); }
    .btn--lg { padding: 1.15em 3em; }
    .card--icon .card__icon { width: 80px; height: 80px; font-size: 2rem; }
    .pagination__btn { min-width: 48px; height: 48px; }
}