/*
 * Tax Accountant Theme - Design System v2
 *
 * Extended CSS custom properties and utility classes for
 * gradients, glassmorphism, modern effects.
 *
 * @package Tax_Accountant
 * @version 2.0.0
 *
 * NOTE: This file extends (not replaces) the existing css/style.css.
 * All original variables and styles remain intact.
 */

/* ========================================
 * Extended CSS Custom Properties
 * ======================================== */
:root {
	/* ---- Gradient Definitions ---- */
	/* Primary gradient (blue to dark navy, diagonal) */
	--gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
	/* Secondary gradient (blue to lighter blue) */
	--gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
	/* Accent gradient (gold tones) */
	--gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
	/* Accent hover gradient (reversed direction) */
	--gradient-accent-hover: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
	/* Hero overlay gradient (deep blue, multi-stop) */
	--gradient-hero-overlay: linear-gradient(
		135deg,
		rgba(15, 38, 64, 0.92) 0%,
		rgba(27, 58, 92, 0.85) 40%,
		rgba(42, 80, 128, 0.78) 100%
	);
	/* Section alt background gradient (white to faint blue) */
	--gradient-section-alt: linear-gradient(180deg, var(--color-bg-white) 0%, #EDF2F7 100%);
	/* Decorative underline gradient (secondary to accent) */
	--gradient-underline: linear-gradient(90deg, var(--color-secondary) 0%, var(--color-accent) 100%);
	/* Radial glow for backgrounds */
	--gradient-radial-primary: radial-gradient(ellipse at center, rgba(74, 144, 217, 0.12) 0%, transparent 70%);
	--gradient-radial-accent: radial-gradient(ellipse at center, rgba(212, 145, 59, 0.10) 0%, transparent 70%);

	/* ---- Extended Shadow Layers (3 levels each: rest, hover, spread) ---- */
	--shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
	--shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);
	--shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.18);
	--shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.15);
	/* Colored shadows */
	--shadow-primary: 0 8px 24px rgba(27, 58, 92, 0.25);
	--shadow-accent: 0 8px 24px rgba(212, 145, 59, 0.30);
	--shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.08);

	/* ---- Glassmorphism Variables ---- */
	--glass-bg: rgba(255, 255, 255, 0.18);
	--glass-bg-strong: rgba(255, 255, 255, 0.28);
	--glass-bg-light: rgba(255, 255, 255, 0.10);
	--glass-border: rgba(255, 255, 255, 0.25);
	--glass-border-strong: rgba(255, 255, 255, 0.40);
	--glass-blur: 12px;
	--glass-blur-strong: 20px;

	/* ---- Header Transparent Variables ---- */
	--header-transparent-bg: transparent;
	--header-solid-bg: rgba(255, 255, 255, 0.97);
	--header-solid-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
	--header-transition: 0.4s ease;

	/* ---- Hover Effect Variables ---- */
	--hover-lift-y: -8px;
	--hover-scale: 1.02;
	--hover-img-scale: 1.05;
	--hover-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);

	/* ---- Section Heading Variables ---- */
	--heading-en-font-size: 13px;
	--heading-en-letter-spacing: 0.25em;
	--heading-en-color: var(--color-secondary);
	--heading-underline-width: 60px;
	--heading-underline-height: 3px;
}


/* ========================================
 * Gradient Background Utilities
 * ======================================== */
.gradient-bg-primary {
	background: var(--gradient-primary);
	color: var(--color-text-white);
}

.gradient-bg-secondary {
	background: var(--gradient-secondary);
	color: var(--color-text-white);
}

.gradient-bg-accent {
	background: var(--gradient-accent);
	color: var(--color-text-white);
}

.gradient-bg-hero-overlay {
	background: var(--gradient-hero-overlay);
}

.gradient-bg-section-alt {
	background: var(--gradient-section-alt);
}

.gradient-underline {
	background: var(--gradient-underline);
}


/* ========================================
 * Glassmorphism Utilities
 * ======================================== */
.glass-effect {
	background: var(--glass-bg);
	backdrop-filter: blur(var(--glass-blur));
	-webkit-backdrop-filter: blur(var(--glass-blur));
	border: 1px solid var(--glass-border);
	border-radius: var(--radius-lg);
}

.glass-effect-strong {
	background: var(--glass-bg-strong);
	backdrop-filter: blur(var(--glass-blur-strong));
	-webkit-backdrop-filter: blur(var(--glass-blur-strong));
	border: 1px solid var(--glass-border-strong);
	border-radius: var(--radius-lg);
}

.glass-effect-light {
	background: var(--glass-bg-light);
	backdrop-filter: blur(var(--glass-blur));
	-webkit-backdrop-filter: blur(var(--glass-blur));
	border: 1px solid var(--glass-border);
	border-radius: var(--radius-lg);
}


/* ========================================
 * Section Heading Component v2
 * (Used via template-parts/section-heading.php)
 * ======================================== */
.section-heading-v2 {
	text-align: center;
	margin-bottom: 48px;
	position: relative;
}

.section-heading-v2 .section-en-label {
	display: block;
	font-size: var(--heading-en-font-size);
	font-weight: var(--font-weight-bold);
	letter-spacing: var(--heading-en-letter-spacing);
	color: var(--heading-en-color);
	text-transform: uppercase;
	margin-bottom: 8px;
	line-height: 1;
}

.section-heading-v2 .section-main-title {
	font-size: var(--font-size-3xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-primary);
	margin-bottom: 16px;
	line-height: var(--line-height-heading);
	position: relative;
	display: inline-block;
	padding-bottom: 16px;
}

.section-heading-v2 .section-main-title::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 50%;
	transform: translateX(-50%);
	width: var(--heading-underline-width);
	height: var(--heading-underline-height);
	background: var(--gradient-underline);
	border-radius: 2px;
}

.section-heading-v2 .section-description {
	font-size: var(--font-size-base);
	color: var(--color-text-light);
	font-weight: var(--font-weight-regular);
	line-height: var(--line-height-base);
	max-width: 640px;
	margin: 0 auto;
}

/* Light variant (for use on dark backgrounds) */
.section-heading-v2.section-heading-v2--light .section-en-label {
	color: rgba(255, 255, 255, 0.7);
}

.section-heading-v2.section-heading-v2--light .section-main-title {
	color: var(--color-text-white);
}

.section-heading-v2.section-heading-v2--light .section-main-title::after {
	background: var(--gradient-accent);
}

.section-heading-v2.section-heading-v2--light .section-description {
	color: rgba(255, 255, 255, 0.85);
}

/* Left-aligned variant */
.section-heading-v2.section-heading-v2--left {
	text-align: left;
}

.section-heading-v2.section-heading-v2--left .section-main-title::after {
	left: 0;
	transform: none;
}

.section-heading-v2.section-heading-v2--left .section-description {
	margin: 0;
}


/* ========================================
 * Button Styles Extended
 * ======================================== */

/* Gradient Primary Button */
.btn-gradient-primary {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 32px;
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-bold);
	border-radius: var(--radius-md);
	transition: all var(--hover-transition);
	text-decoration: none;
	cursor: pointer;
	border: 2px solid transparent;
	line-height: 1;
	gap: 8px;
	background: var(--gradient-primary);
	color: var(--color-text-white);
	border-color: transparent;
}

.btn-gradient-primary:hover {
	background: var(--gradient-secondary);
	color: var(--color-text-white);
	box-shadow: var(--shadow-primary);
	transform: translateY(-2px);
}

.btn-gradient-primary:focus-visible {
	outline: 2px solid var(--color-secondary);
	outline-offset: 2px;
}

/* Gradient Accent Button */
.btn-gradient-accent {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 32px;
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-bold);
	border-radius: var(--radius-md);
	transition: all var(--hover-transition);
	text-decoration: none;
	cursor: pointer;
	border: 2px solid transparent;
	line-height: 1;
	gap: 8px;
	background: var(--gradient-accent);
	color: var(--color-text-white);
	border-color: transparent;
}

.btn-gradient-accent:hover {
	background: var(--gradient-accent-hover);
	color: var(--color-text-white);
	box-shadow: var(--shadow-accent);
	transform: translateY(-2px) scale(var(--hover-scale));
}

.btn-gradient-accent:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

/* Glassmorphism Button */
.btn-glass {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 32px;
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-bold);
	border-radius: var(--radius-md);
	transition: all var(--hover-transition);
	text-decoration: none;
	cursor: pointer;
	border: 1px solid var(--glass-border-strong);
	line-height: 1;
	gap: 8px;
	background: var(--glass-bg-strong);
	backdrop-filter: blur(var(--glass-blur));
	-webkit-backdrop-filter: blur(var(--glass-blur));
	color: var(--color-text-white);
}

.btn-glass:hover {
	background: rgba(255, 255, 255, 0.35);
	border-color: rgba(255, 255, 255, 0.5);
	box-shadow: var(--shadow-glass);
	transform: translateY(-2px);
}

.btn-glass:focus-visible {
	outline: 2px solid rgba(255, 255, 255, 0.6);
	outline-offset: 2px;
}

/* Outline Accent Button */
.btn-outline-accent {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 32px;
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-bold);
	border-radius: var(--radius-md);
	transition: all var(--hover-transition);
	text-decoration: none;
	cursor: pointer;
	border: 2px solid var(--color-accent);
	line-height: 1;
	gap: 8px;
	background: transparent;
	color: var(--color-accent);
}

.btn-outline-accent:hover {
	background: var(--gradient-accent);
	border-color: var(--color-accent);
	color: var(--color-text-white);
	box-shadow: var(--shadow-accent);
	transform: translateY(-2px);
}

.btn-outline-accent:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

/* Outline White Button (for dark backgrounds) */
.btn-outline-white-v2 {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 32px;
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-bold);
	border-radius: var(--radius-md);
	transition: all var(--hover-transition);
	text-decoration: none;
	cursor: pointer;
	border: 2px solid rgba(255, 255, 255, 0.6);
	line-height: 1;
	gap: 8px;
	background: transparent;
	color: var(--color-text-white);
}

.btn-outline-white-v2:hover {
	background: rgba(255, 255, 255, 0.15);
	border-color: rgba(255, 255, 255, 0.8);
	color: var(--color-text-white);
	transform: translateY(-2px);
}

.btn-outline-white-v2:focus-visible {
	outline: 2px solid rgba(255, 255, 255, 0.6);
	outline-offset: 2px;
}

/* Button size variants (apply alongside any button style) */
.btn-v2-sm {
	padding: 10px 20px;
	font-size: var(--font-size-sm);
}

.btn-v2-lg {
	padding: 18px 40px;
	font-size: var(--font-size-lg);
}

/* Button with arrow icon animation */
.btn-arrow .btn-arrow-icon {
	transition: transform var(--transition-base);
	display: inline-block;
}

.btn-arrow:hover .btn-arrow-icon {
	transform: translateX(4px);
}


/* ========================================
 * Card Styles Extended
 * ======================================== */

/* Enhanced Card with stronger hover */
.card-v2 {
	background-color: var(--color-bg-white);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-sm);
	overflow: hidden;
	transition: all var(--hover-transition);
	position: relative;
}

.card-v2:hover {
	box-shadow: var(--shadow-hover);
	transform: translateY(var(--hover-lift-y));
}

.card-v2:focus-within {
	box-shadow: var(--shadow-hover);
	transform: translateY(var(--hover-lift-y));
}

/* Card with image zoom on hover */
.card-v2 .card-v2-image-wrap {
	overflow: hidden;
	position: relative;
}

.card-v2 .card-v2-image-wrap img {
	transition: transform var(--hover-transition);
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.card-v2:hover .card-v2-image-wrap img {
	transform: scale(var(--hover-img-scale));
}

.card-v2 .card-v2-body {
	padding: 24px;
}

.card-v2 .card-v2-title {
	font-size: var(--font-size-lg);
	font-weight: var(--font-weight-bold);
	margin-bottom: 12px;
	color: var(--color-primary);
	line-height: var(--line-height-heading);
}

.card-v2 .card-v2-title a {
	color: inherit;
	text-decoration: none;
	transition: color var(--transition-base);
}

.card-v2 .card-v2-title a:hover {
	color: var(--color-secondary);
}

.card-v2 .card-v2-text {
	font-size: var(--font-size-sm);
	color: var(--color-text-light);
	line-height: var(--line-height-base);
}

/* 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);
	border-radius: var(--radius-lg);
	overflow: hidden;
	transition: all var(--hover-transition);
}

.card-glass:hover {
	background: var(--glass-bg-strong);
	border-color: var(--glass-border-strong);
	box-shadow: var(--shadow-glass);
	transform: translateY(-4px);
}

.card-glass .card-v2-body {
	padding: 24px;
}

/* Card with gradient top border accent */
.card-v2--accent-top {
	border-top: 3px solid transparent;
	border-image: var(--gradient-underline) 1;
}

/* Card with subtle gradient background on hover */
.card-v2--gradient-hover {
	position: relative;
}

.card-v2--gradient-hover::before {
	content: '';
	position: absolute;
	inset: 0;
	background: var(--gradient-radial-primary);
	opacity: 0;
	transition: opacity var(--hover-transition);
	pointer-events: none;
	border-radius: var(--radius-lg);
}

.card-v2--gradient-hover:hover::before {
	opacity: 1;
}

/* Card link arrow animation */
.card-v2 .card-link-arrow {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-bold);
	color: var(--color-secondary);
	transition: all var(--transition-base);
}

.card-v2 .card-link-arrow .arrow-icon {
	transition: transform var(--transition-base);
}

.card-v2:hover .card-link-arrow .arrow-icon {
	transform: translateX(4px);
}

.card-v2:hover .card-link-arrow {
	color: var(--color-accent);
}


/* ========================================
 * Decorative SVG Elements
 * ======================================== */

/* Wave Section Divider */
.wave-divider {
	position: relative;
	width: 100%;
	overflow: hidden;
	line-height: 0;
}

.wave-divider svg {
	display: block;
	width: 100%;
	height: auto;
}

.wave-divider--top {
	margin-bottom: -1px;
}

.wave-divider--bottom {
	margin-top: -1px;
}

/* Dot Pattern Background */
.dot-pattern-bg {
	position: relative;
}

.dot-pattern-bg::before {
	content: '';
	position: absolute;
	inset: 0;
	background-image: radial-gradient(circle, rgba(74, 144, 217, 0.08) 1px, transparent 1px);
	background-size: 24px 24px;
	pointer-events: none;
	z-index: 0;
}

.dot-pattern-bg > * {
	position: relative;
	z-index: 1;
}

/* Diagonal Stripe Pattern Background */
.stripe-pattern-bg {
	position: relative;
}

.stripe-pattern-bg::before {
	content: '';
	position: absolute;
	inset: 0;
	background-image: repeating-linear-gradient(
		-45deg,
		transparent,
		transparent 10px,
		rgba(255, 255, 255, 0.04) 10px,
		rgba(255, 255, 255, 0.04) 20px
	);
	pointer-events: none;
	z-index: 0;
}

.stripe-pattern-bg > * {
	position: relative;
	z-index: 1;
}

/* Section with decorative background */
.section-decorated {
	position: relative;
	overflow: hidden;
}

.section-decorated .section-decorated-bg {
	position: absolute;
	inset: 0;
	pointer-events: none;
	z-index: 0;
}

.section-decorated > .container {
	position: relative;
	z-index: 1;
}


/* ========================================
 * Header Transparent Base Styles
 * ======================================== */

/* Transparent header variant (added to body via JS or class) */
.header-transparent .site-header {
	background-color: var(--header-transparent-bg);
	border-bottom: 1px solid transparent;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 1000;
	transition: background-color var(--header-transition),
	            border-color var(--header-transition),
	            box-shadow var(--header-transition);
}

.header-transparent .site-header .site-title-text {
	color: var(--color-text-white);
}

.header-transparent .site-header .logo-icon {
	color: var(--color-accent);
}

.header-transparent .site-header .nav-menu > li > a {
	color: rgba(255, 255, 255, 0.9);
}

.header-transparent .site-header .nav-menu > li > a:hover,
.header-transparent .site-header .nav-menu > li > a:focus {
	color: var(--color-text-white);
	background-color: rgba(255, 255, 255, 0.1);
}

.header-transparent .site-header .nav-menu > li.current-menu-item > a,
.header-transparent .site-header .nav-menu > li.current-menu-parent > a {
	color: var(--color-text-white);
}

.header-transparent .site-header .hamburger-line {
	background-color: var(--color-text-white);
}

.header-transparent .site-header .hamburger-text {
	color: rgba(255, 255, 255, 0.8);
}

/* Scrolled state: solid white background */
.header-transparent .site-header.scrolled {
	background-color: var(--header-solid-bg);
	border-bottom-color: var(--color-border);
	box-shadow: var(--header-solid-shadow);
}

.header-transparent .site-header.scrolled .site-title-text {
	color: var(--color-primary);
}

.header-transparent .site-header.scrolled .nav-menu > li > a {
	color: var(--color-text);
}

.header-transparent .site-header.scrolled .nav-menu > li > a:hover,
.header-transparent .site-header.scrolled .nav-menu > li > a:focus {
	color: var(--color-primary);
	background-color: var(--color-bg-light);
}

.header-transparent .site-header.scrolled .nav-menu > li.current-menu-item > a,
.header-transparent .site-header.scrolled .nav-menu > li.current-menu-parent > a {
	color: var(--color-primary);
}

.header-transparent .site-header.scrolled .hamburger-line {
	background-color: var(--color-primary);
}

.header-transparent .site-header.scrolled .hamburger-text {
	color: var(--color-text-light);
}

/* Ensure main content offset for fixed header on front page */
.header-transparent .site-main--front {
	padding-top: 0;
}

/* Non-transparent pages: header stays at top, no offset */
.site-main {
	padding-top: 0;
}


/* ========================================
 * Fade-in Animation Utilities
 * ======================================== */
.fade-in-up {
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.is-visible {
	opacity: 1;
	transform: translateY(0);
}

/* Staggered children animation */
.fade-in-stagger > * {
	opacity: 0;
	transform: translateY(20px);
	transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in-stagger.is-visible > *:nth-child(1) { transition-delay: 0.0s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(7) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }
.fade-in-stagger.is-visible > *:nth-child(8) { transition-delay: 0.7s; opacity: 1; transform: translateY(0); }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
	.fade-in-up {
		opacity: 1;
		transform: none;
		transition: none;
	}

	.fade-in-stagger > * {
		opacity: 1;
		transform: none;
		transition: none;
	}
}


/* ========================================
 * Accessibility: Focus Styles
 * ======================================== */
@media (hover: hover) {
	/* Only apply hover effects on devices that support hover */
	.card-v2:hover {
		box-shadow: var(--shadow-hover);
		transform: translateY(var(--hover-lift-y));
	}
}

@media (hover: none) {
	/* Disable hover transforms on touch devices */
	.card-v2:hover {
		transform: none;
	}
	.btn-gradient-primary:hover,
	.btn-gradient-accent:hover,
	.btn-glass:hover,
	.btn-outline-accent:hover,
	.btn-outline-white-v2:hover {
		transform: none;
	}
}