@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --primary: #2D3436; /* Charcoal */
    --accent: #6C5CE7;  /* Soft Purple/Indigo */
    --accent-hover: #5849C4;
    --secondary: #00CEC9; /* Teal */
    --success: #00B894;
    --error: #FF7675;
    --warning: #FAB1A0;
    --text-main: #2D3436;
    --text-muted: #636E72;
    --bg-light: #F9FAFB;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.5;
    overflow-x: hidden;
}

.main-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo span strong {
    color: var(--accent);
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 120px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: #000; /* Fallback */
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('premium_house_windows_hero_1778593138616.png') no-repeat center center/cover;
    opacity: 0.8;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 60px;
    width: 100%;
}

.hero-left h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1;
    color: #fff;
    margin-bottom: 40px;
    letter-spacing: -2px;
}

.hero-left h1 span {
    background: linear-gradient(135deg, #A29BFE, #6C5CE7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Icon Bar (Glassmorphism) */
.icon-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
}

.icon-item {
    display: flex;
    align-items: center;
    gap: 15px;
    color: #fff;
}

.icon-item i {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.5rem;
    color: var(--secondary);
    transition: var(--transition);
}

.icon-item:hover i {
    background: var(--accent);
    color: #fff;
    transform: translateY(-5px);
}

.icon-item span {
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0.9;
}

/* Form Card (Premium Design) */
.hero-right {
    position: relative;
}

.form-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: var(--transition);
}

.form-header {
    padding: 30px 30px 0;
    text-align: center;
}

.form-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.form-body {
    padding: 30px;
}

/* Progress Bar */
.progress-container {
    height: 6px;
    background: rgba(0, 0, 0, 0.05);
    margin: 20px 0 30px;
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--secondary));
    width: 25%;
    border-radius: 10px;
    transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Inputs & Form Groups */
.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input, 
.form-group select {
    width: 100%;
    padding: 16px 20px;
    background: #fff;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-main);
    transition: var(--transition);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

.form-group input:focus, 
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.1);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%232D3436'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px center;
    background-size: 16px;
}

/* ZIP Specific */
.zip-group input {
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    letter-spacing: 8px;
    padding: 20px;
}

.zip-instruction {
    text-align: center;
    margin-bottom: 30px;
}

.zip-instruction i {
    font-size: 3rem;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-10px);}
    60% {transform: translateY(-5px);}
}

/* Buttons */
.go-btn, .next-btn, .submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 10px 20px -10px var(--accent);
}

.go-btn:hover, .next-btn:hover, .submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px -10px var(--accent);
}

.go-btn:active, .next-btn:active, .submit-btn:active {
    transform: translateY(0);
}

.back-btn {
    padding: 18px 25px;
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-main);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.back-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Step Navigation */
.step-nav {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* Animations */
.step {
    display: none;
    animation: slideUp 0.6s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.step.active {
    display: block;
}

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

/* Brands Section */
.brands-section {
    padding: 100px 0;
    background: #fff;
    text-align: center;
}

.brands-section h3 {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--text-muted);
    margin-bottom: 60px;
}

.brands-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    flex-wrap: wrap;
}

.brand-item {
    font-size: 2.2rem;
    font-weight: 900;
    color: #CED4DA;
    transition: var(--transition);
    cursor: default;
}

.brand-item:hover {
    color: var(--primary);
    transform: scale(1.1);
}

/* Info Section */
.info-section {
    padding: 120px 0;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
    gap: 100px;
}

.info-image {
    position: relative;
}

.info-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.info-image::after {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 4px solid var(--accent);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.info-text h2 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.1;
    letter-spacing: -1px;
}

.info-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.info-btn {
    padding: 18px 45px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.info-btn:hover {
    background: var(--accent);
    transform: translateX(10px);
}

/* Error States */
.form-group.error input, 
.form-group.error select {
    border-color: var(--error);
    background: #FFF5F5;
}

.error-message {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--error);
    margin-top: 6px;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

/* Toast Notification (Premium) */
.toast-container {
    position: fixed;
    bottom: 40px;
    right: 40px;
    z-index: 10000;
}

.toast {
    background: var(--primary);
    color: #fff;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 15px;
    animation: toastSlide 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes toastSlide {
    from { transform: translateX(100%) scale(0.5); opacity: 0; }
    to { transform: translateX(0) scale(1); opacity: 1; }
}

.toast.toast-error {
    background: var(--error);
}

/* Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive Refinements */
@media (max-width: 1024px) {
    .hero {
        padding-top: 100px;
        min-height: auto;
        padding-bottom: 60px;
    }
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    .hero-left h1 {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
        margin-bottom: 30px;
    }
    .icon-bar {
        max-width: 600px;
        margin: 0 auto;
    }
    .hero-right {
        max-width: 500px;
        width: 100%;
        margin: 0 auto;
    }
    .info-section {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding: 80px 24px;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 0;
    }
    .logo {
        font-size: 1.3rem;
        justify-content: center;
    }
    .icon-bar {
        grid-template-columns: repeat(2, 1fr);
        padding: 20px;
        gap: 15px;
    }
    .icon-item {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
    .icon-item i {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    .icon-item span {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .main-container {
        padding: 0 16px;
    }
    .hero-left h1 {
        font-size: 2.2rem;
        letter-spacing: -1px;
    }
    .form-card {
        border-radius: var(--radius-md);
    }
    .form-header {
        padding: 20px 20px 0;
    }
    .form-header h2 {
        font-size: 1.3rem;
    }
    .form-body {
        padding: 20px;
    }
    .form-group input, .form-group select {
        padding: 14px 16px;
        font-size: 0.95rem;
    }
    .zip-group input {
        font-size: 1.8rem;
        letter-spacing: 4px;
    }
    .brands-grid {
        gap: 30px;
    }
    .brand-item {
        font-size: 1.4rem;
    }
    .info-text h2 {
        font-size: 2rem;
    }
    .info-text p {
        font-size: 1rem;
    }
    .info-btn {
        width: 100%;
        padding: 16px;
    }
    .toast-container {
        bottom: 20px;
        right: 16px;
        left: 16px;
    }
    .toast {
        min-width: auto;
        width: 100%;
    }
}