/*
 Theme Name:   Tianwen Pro
 Theme URI:    https://tianwenwangluo.com
 Description:  High-end child theme for Hello Elementor. Non-destructive enhancement with premium typography, refined color system, and smooth animations. Inspired by Impression.co.uk and Clay.global design patterns.
 Author:       天问网络
 Author URI:   https://tianwenwangluo.com
 Template:     hello-elementor
 Version:      2.0.0
 Text Domain:  tianwen-pro
*/

/* ============================================
   DESIGN SYSTEM — Inspired by Impression.co.uk
   ============================================
   Philosophy: Don't force dark mode on everything.
   Instead: Deep navy hero for authority + Clean white
   body for readability. Let Elementor pages keep their
   own backgrounds. Only ENHANCE, never DESTROY.
   ============================================ */

/* 1. Google Fonts are loaded via functions.php */

/* 2. CSS Custom Properties (Design Tokens) */
:root {
    /* Primary Palette - Inspired by Impression.co.uk */
    --tw-navy: #1B2443;
    --tw-navy-light: #243054;
    --tw-blue: #1863DC;
    --tw-blue-hover: #2B74E8;
    --tw-gold: #D4A853;
    --tw-gold-hover: #E0B96B;

    /* Neutral Scale */
    --tw-white: #FFFFFF;
    --tw-gray-50: #F8F9FA;
    --tw-gray-100: #F1F3F5;
    --tw-gray-200: #E9ECEF;
    --tw-gray-400: #ADB5BD;
    --tw-gray-600: #6C757D;
    --tw-gray-800: #343A40;
    --tw-gray-900: #212529;

    /* Typography */
    --tw-font-display: 'Red Hat Display', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --tw-font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;

    /* Spacing */
    --tw-section-pad: clamp(60px, 8vw, 120px);
    --tw-container-max: 1200px;

    /* Transitions */
    --tw-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --tw-duration: 0.4s;
}

/* 3. Global Typography Enhancement */
body {
    font-family: var(--tw-font-body) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.7;
    color: var(--tw-gray-800);
}

h1, h2, h3, h4, h5, h6,
.elementor-heading-title {
    font-family: var(--tw-font-display) !important;
    font-weight: 700;
    line-height: 1.2;
}

/* 4. Refined Link Styles */
a {
    transition: color var(--tw-duration) var(--tw-ease);
}

/* 5. Elementor-Compatible Utility Classes
   Usage: Add these in Elementor > Advanced > CSS Classes
   --------------------------------------------------- */

/* --- HERO SECTION (Dark Authority, like Impression) --- */
.tw-hero {
    background: linear-gradient(135deg, var(--tw-navy) 0%, var(--tw-navy-light) 100%) !important;
    color: var(--tw-white) !important;
    position: relative;
    overflow: hidden;
}
.tw-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(24, 99, 220, 0.15) 0%, transparent 70%);
    pointer-events: none;
}
.tw-hero * {
    color: var(--tw-white) !important;
}
.tw-hero .elementor-heading-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem) !important;
    font-weight: 800 !important;
    letter-spacing: -0.02em !important;
    line-height: 1.1 !important;
}

/* --- HERO SUBTITLE --- */
.tw-hero-sub {
    color: rgba(255,255,255,0.7) !important;
    font-size: 1.15rem !important;
    line-height: 1.7 !important;
    max-width: 600px;
}
.tw-hero-sub * {
    color: rgba(255,255,255,0.7) !important;
}

/* --- CTA BUTTON (Primary - Gold accent like Impression) --- */
.tw-btn-primary .elementor-button {
    background: var(--tw-gold) !important;
    color: var(--tw-navy) !important;
    border-radius: 4px !important;
    padding: 16px 32px !important;
    font-family: var(--tw-font-body) !important;
    font-weight: 600 !important;
    font-size: 1rem !important;
    border: 2px solid var(--tw-gold) !important;
    transition: all var(--tw-duration) var(--tw-ease) !important;
}
.tw-btn-primary .elementor-button:hover {
    background: var(--tw-gold-hover) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(212, 168, 83, 0.3) !important;
}

/* --- CTA BUTTON (Secondary - Outline) --- */
.tw-btn-outline .elementor-button {
    background: transparent !important;
    color: var(--tw-white) !important;
    border: 2px solid rgba(255,255,255,0.3) !important;
    border-radius: 4px !important;
    padding: 16px 32px !important;
    font-weight: 600 !important;
    transition: all var(--tw-duration) var(--tw-ease) !important;
}
.tw-btn-outline .elementor-button:hover {
    border-color: var(--tw-white) !important;
    background: rgba(255,255,255,0.1) !important;
}

/* --- SERVICE CARD (Glass card with subtle border) --- */
.tw-card {
    background: var(--tw-white) !important;
    border: 1px solid var(--tw-gray-200) !important;
    border-radius: 12px !important;
    padding: 36px !important;
    transition: all var(--tw-duration) var(--tw-ease) !important;
}
.tw-card:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08) !important;
    border-color: var(--tw-blue) !important;
}

/* --- DARK CARD (for dark sections like case studies) --- */
.tw-card-dark {
    background: var(--tw-navy-light) !important;
    border: 1px solid rgba(255,255,255,0.08) !important;
    border-radius: 12px !important;
    padding: 36px !important;
    transition: all var(--tw-duration) var(--tw-ease) !important;
}
.tw-card-dark:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3) !important;
    border-color: rgba(255,255,255,0.15) !important;
}
.tw-card-dark * {
    color: var(--tw-white) !important;
}

/* --- STAT NUMBER (Big data point) --- */
.tw-stat .elementor-heading-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem) !important;
    font-weight: 800 !important;
    color: var(--tw-blue) !important;
}

/* --- SECTION HEADING (Centered section title) --- */
.tw-section-title .elementor-heading-title {
    font-size: clamp(2rem, 4vw, 3rem) !important;
    font-weight: 700 !important;
    color: var(--tw-gray-900) !important;
    position: relative;
}

/* --- BADGE ROW (Award badges, like Impression hero) --- */
.tw-badges {
    display: flex !important;
    align-items: center !important;
    gap: 20px !important;
    flex-wrap: wrap !important;
}
.tw-badges img {
    height: 50px !important;
    width: auto !important;
    filter: brightness(0) invert(1);
    opacity: 0.7;
    transition: opacity var(--tw-duration) ease;
}
.tw-badges img:hover {
    opacity: 1;
}

/* --- Subtle animations (applied by GSAP, CSS fallback) --- */
.tw-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--tw-ease), transform 0.8s var(--tw-ease);
}
.tw-fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 6. Navigation Enhancement (Non-destructive) */
.elementor-location-header,
.site-header,
header.e-header {
    transition: background var(--tw-duration) ease, box-shadow var(--tw-duration) ease;
}

/* 7. Footer Enhancement */
.elementor-location-footer {
    font-family: var(--tw-font-body) !important;
}

/* 8. Responsive Improvements */
@media (max-width: 767px) {
    .tw-hero .elementor-heading-title {
        font-size: 2rem !important;
    }
    .tw-hero-sub,
    .tw-hero-sub * {
        font-size: 1rem !important;
    }
    .tw-card, .tw-card-dark {
        padding: 24px !important;
    }
    .tw-badges {
        gap: 12px !important;
    }
    .tw-badges img {
        height: 36px !important;
    }
}

@media (max-width: 1024px) {
    .tw-hero .elementor-heading-title {
        font-size: 2.5rem !important;
    }
}

/* 9. Smooth Scrolling (Lenis base) */
html.lenis { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
.lenis.lenis-scrolling iframe { pointer-events: none; }