/* TREEREMOVALHUB - CSS Design System v5 */
:root {
    --color-primary: #DC2626;
    --color-primary-dark: #B91C1C;
    --color-secondary: #0F172A;
    --color-secondary-light: #1E293B;
    --color-accent: #16A34A;
    --color-white: #FFFFFF;
    --color-surface: #F8FAFC;
    --color-border: #E2E8F0;
    --color-text: #1E293B;
    --color-text-light: #64748B;
    --color-text-muted: #94A3B8;
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition-base: 300ms ease;
    --container-max: 1280px;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-surface);
    -webkit-font-smoothing: antialiased;
}

img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-secondary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(220, 38, 38, 0.4);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-white);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(15, 23, 42, 0.98);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.logo-icon svg {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    white-space: nowrap;
}

.logo-text span {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    transition: color 150ms ease;
}

.nav-links a:hover {
    color: var(--color-white);
}

.nav-phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-weight: 700;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-base);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 120px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.7));
    z-index: 1;
}

.hero-bg video,
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: var(--color-white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(220, 38, 38, 0.2);
    border: 1px solid rgba(220, 38, 38, 0.5);
    color: #FECACA;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.hero-title {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.hero-title .highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-feature svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

/* Form Card */
.form-card {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.form-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
}

.form-progress-bar {
    height: 100%;
    background: var(--color-primary);
    transition: width 500ms ease;
}

.form-body {
    padding: 2rem;
}

.form-step {
    display: none;
    animation: slideUp 0.4s ease;
}

.form-step.active {
    display: block;
}

.form-title {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: 1rem;
    transition: all 150ms ease;
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.form-input-icon {
    position: relative;
}

.form-input-icon svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
}

.form-input-icon .form-input {
    padding-left: 3rem;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.radio-option {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 150ms ease;
}

.radio-option:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
}

.radio-option input {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.radio-option-label {
    color: var(--color-white);
    font-weight: 600;
}

.radio-option-desc {
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.form-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    margin-top: 1.5rem;
}

.form-success {
    text-align: center;
    padding: 2rem 0;
}

.form-success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 0 30px rgba(22, 163, 74, 0.3);
}

.form-success-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-white);
}