/* =====================================================
   SOLUTION DETAIL PAGE STYLES - SG ENERGY 2026
   Professional & Modern UI/UX Design System
===================================================== */

/* ===================== CSS VARIABLES ===================== */
:root {
    /* Primary Colors */
    --primary-color: #1565c0;
    --primary-dark: #0d47a1;
    --primary-light: #42a5f5;
    --primary-lighter: #90caf9;
    
    /* Secondary Colors */
    --secondary-color: #00acc1;
    --secondary-light: #26c6da;
    
    /* Accent & Status */
    --accent-color: #ffa726;
    --accent-dark: #f57c00;
    --success-color: #66bb6a;
    --error-color: #ef5350;
    --warning-color: #ffca28;
    
    /* Neutral Colors */
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    
    /* Text Colors */
    --text-dark: #212121;
    --text-medium: #424242;
    --text-light: #757575;
    --text-lighter: #9e9e9e;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-lighter: #fafbfc;
    
    /* Border Colors */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --border-dark: #d1d5db;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 48px rgba(0,0,0,0.18);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
    --gradient-secondary: linear-gradient(135deg, #42a5f5 0%, #00acc1 100%);
    --gradient-accent: linear-gradient(135deg, #ffa726 0%, #f57c00 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 30, 60, 0.8) 0%, rgba(21, 101, 192, 0.6) 100%);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
}

/* ===================== INTRO SECTION ===================== */
.solutions-intro {
    background: linear-gradient(90deg, #ffffff 0%, #ffffff 55%, rgba(21, 101, 192, 0.08) 100%);
    color: var(--text-dark);
    position: relative;
    overflow: hidden;
}

.solutions-intro::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(21, 101, 192, 0.05) 0%, rgba(0, 172, 193, 0.08) 100%);
    pointer-events: none;
}

.solutions-intro__wrap {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    min-height: 420px;
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.solutions-intro__left {
    padding: var(--spacing-3xl) var(--spacing-xl) var(--spacing-3xl) var(--spacing-xl);
    z-index: 10;
    position: relative;
}

.solutions-intro__title {
    margin: var(--spacing-lg) 0 var(--spacing-md);
    font-size: 40px;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: var(--text-dark);
}

.solutions-intro__title .highlight {
    display: block;
    color: var(--primary-color);
}

.solutions-intro__text {
    margin: var(--spacing-md) 0;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-medium);
    max-width: 520px;
}

.solutions-intro__features {
    margin: var(--spacing-xl) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 14px;
    font-weight: 600;
    background: var(--text-white);
    padding: 12px 18px;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    color: var(--text-dark);
}

.feature-badge i {
    color: var(--success-color);
    font-size: 18px;
    flex-shrink: 0;
}

.solutions-intro__actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 28px;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    background: #ffa726;
    color: var(--text-white);
}

.btn-primary:hover {
    background: #f57c00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 28px;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: rgba(21, 101, 192, 0.05);
    border-color: var(--primary-dark);
}

.btn-icon i {
    font-size: 16px;
}

.solutions-intro__right {
    position: relative;
    height: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.solutions-intro__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.9;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 15% 100%);
}

.solutions-intro__overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-overlay);
}

/* ===================== BENEFITS SECTION ===================== */
.solutions-benefits {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(90deg, #ffffff 0%, #f8f9fa 50%, #f0f7ff 100%);
}

.section-head {
    margin: 0 0 var(--spacing-2xl);
    text-align: left;
}

.section-head__kicker {
    display: inline-block;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.section-head__title {
    margin: 0;
    font-size: 32px;
    font-weight: 900;
    color: var(--text-dark);
    line-height: 1.2;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.benefit {
    padding: var(--spacing-xl);
    background: var(--text-white);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-light);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.benefit::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-smooth);
}

.benefit:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.benefit:hover::before {
    transform: scaleX(1);
}

.benefit__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(21, 101, 192, 0.1), rgba(0, 172, 193, 0.08));
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    font-size: 24px;
}

.benefit__title {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.benefit__desc {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.6;
}

/* ===================== PROCESS SECTION ===================== */
.solutions-process {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--bg-white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.process-step {
    position: relative;
    text-align: center;
    padding: var(--spacing-xl);
}

.process-step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-size: 28px;
    font-weight: 900;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 2;
}

.process-step__title {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.process-step__desc {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.6;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: 70px;
    left: calc(100% + var(--spacing-md));
    width: calc(var(--spacing-xl) - 4px);
    height: 2px;
    background: linear-gradient(90deg, var(--primary-light) 0%, var(--secondary-light) 100%);
}

/* ===================== FAQ COMPONENT ===================== */
.sol-faq {
    max-width: 900px;
    margin: var(--spacing-2xl) auto 0;
}

.sol-faq__item {
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    background: var(--text-white);
    transition: var(--transition-smooth);
}

.sol-faq__item[open] {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.sol-faq__q {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
    cursor: pointer;
    background: var(--bg-white);
    user-select: none;
    transition: var(--transition-base);
    width: 100%;
    text-align: left;
    border: none;
}

.sol-faq__item[open] .sol-faq__q {
    background: linear-gradient(90deg, rgba(21, 101, 192, 0.03), rgba(0, 172, 193, 0.05));
    color: var(--primary-color);
}

.sol-faq__q::-webkit-details-marker {
    display: none;
}

.sol-faq__q::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 14px;
    margin-left: auto;
    color: var(--primary-color);
    transition: transform var(--transition-smooth);
    flex-shrink: 0;
}

.sol-faq__item[open] .sol-faq__q::after {
    transform: rotate(180deg);
}

.sol-faq__q i {
    color: var(--primary-color);
    font-size: 18px;
    flex-shrink: 0;
}

.sol-faq__a {
    padding: 0 var(--spacing-xl) var(--spacing-lg);
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.8;
    border-top: 2px solid var(--border-light);
    background: var(--bg-lighter);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================== CTA SECTION ===================== */
.solutions-cta {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--gradient-primary);
    text-align: center;
    color: var(--text-white);
}

.solutions-cta__title {
    font-size: 32px;
    font-weight: 900;
    margin-bottom: var(--spacing-lg);
}

.solutions-cta__text {
    font-size: 16px;
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.solutions-cta__actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Center CTA layout for solution detail pages */
.solutions-after--center .solutions-after__wrap {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
}

/* ===================== RESPONSIVE DESIGN ===================== */
@media (max-width: 1024px) {
    .solutions-intro__wrap {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .solutions-intro__right {
        display: none;
    }

    .solutions-intro__left {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .solutions-intro__title {
        font-size: 32px;
    }

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

    .process-step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .solutions-intro {
        background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    }

    .solutions-intro::before {
        display: none;
    }

    .solutions-intro__left {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .solutions-intro__title {
        font-size: 26px;
    }

    .solutions-intro__features {
        gap: var(--spacing-sm);
    }

    .feature-badge {
        padding: 10px 14px;
        font-size: 13px;
    }

    .section-head__title {
        font-size: 24px;
    }

    .benefit-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .benefit {
        padding: var(--spacing-lg);
    }

    .process-steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .sol-faq__q {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 14px;
    }

    .sol-faq__a {
        padding: 0 var(--spacing-lg) var(--spacing-md);
        font-size: 13px;
    }

    .solutions-intro__actions {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .solutions-cta__title {
        font-size: 24px;
    }

    .solutions-cta__text {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .solutions-intro__title {
        font-size: 22px;
    }

    .solutions-intro__text {
        font-size: 14px;
    }

    .section-head__title {
        font-size: 20px;
    }

    .sol-faq__item {
        margin-bottom: var(--spacing-sm);
    }

    .sol-faq__q,
    .sol-faq__a {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}

/* ===================== ANIMATIONS ===================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.slide-in-up {
    animation: slideInUp 0.5s ease;
}