/* ==========================================================================
   SolarProspect — Global Design Tokens & Base Styles
   Prefix: sp-
   Design reference: DESIGN.md (Webflow-inspired)
   ========================================================================== */

/* --- Design Tokens --- */
:root {
    /* Primary */
    --color-primary: #146ef5;
    --color-primary-dark: #0352c9;
    --color-primary-light: #629cf4;

    /* Text */
    --color-text: #080808;
    --color-text-secondary: #6a717b;
    --color-text-light: #ffffff;

    /* Backgrounds */
    --color-bg: #ffffff;
    --color-bg-dark: #080808;
    --color-bg-subtle: #f2f2f3;

    /* Borders */
    --color-border: #dfe0e2;
    --color-border-hover: #898989;

    /* Semantic */
    --color-success: #2e9e5d;
    --color-warning: #eca413;
    --color-danger: #d92626;
    --color-info: #2d7fd2;

    /* Radius */
    --radius-sm: 4px;
    --radius: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-round: 50%;

    /* Spacing (8-point grid) */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 100px;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Inconsolata', monospace;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);
    --shadow-card: rgba(0, 0, 0, 0) 0px 84px 24px, rgba(0, 0, 0, 0.01) 0px 54px 22px, rgba(0, 0, 0, 0.04) 0px 30px 18px, rgba(0, 0, 0, 0.08) 0px 13px 13px, rgba(0, 0, 0, 0.09) 0px 3px 7px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition: 0.2s ease;
    --transition-slow: 0.3s ease;
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    color: var(--color-primary-dark);
}

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

h4,
h5,
h6 {
    font-family: var(--font-body);
    font-weight: 600;
    line-height: 1.3;
}

/* --- Layout --- */
.sp-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.sp-section {
    padding: var(--space-4xl) 0;
}

/* --- Navigation --- */
.sp-nav {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: var(--space-xs) 0;
}

.sp-nav__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 40px;
}

.sp-nav__logo {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sp-nav__logo:hover {
    color: var(--color-text);
}

.sp-nav__logo-icon-img {
    height: 64px;
    width: auto;
    flex-shrink: 0;
}

.sp-nav__logo-text {
    font-weight: 600;
    font-size: 1.25rem;
    line-height: 1;
}

.sp-nav__logo-solar {
    color: #F5A623;
}

.sp-nav__logo-prospect {
    color: var(--color-primary);
}

.sp-nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.sp-nav__link {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

.sp-nav__link:hover {
    color: var(--color-text);
}

/* --- Buttons --- */
.sp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.6;
    cursor: pointer;
    transition: background var(--transition), transform 0.1s ease;
    text-decoration: none;
}

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

.sp-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.sp-btn--primary {
    background: var(--color-primary);
    color: var(--color-text-light);
}

.sp-btn--primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-text-light);
    transform: translateY(-1px);
}

.sp-btn--large {
    padding: 18px 36px;
    font-size: 1.1rem;
    font-weight: 600;
}

.sp-btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.sp-btn--outline:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
}

.sp-btn--ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.sp-btn--ghost:hover {
    color: var(--color-text);
    background: var(--color-bg-subtle);
}

.sp-btn--danger {
    background: var(--color-danger);
    color: var(--color-text-light);
}

.sp-btn--danger:hover {
    background: #b91c1c;
    color: var(--color-text-light);
}

/* --- Form Elements --- */
.sp-input {
    width: 100%;
    padding: 12px var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.sp-input::placeholder {
    color: #ababab;
}

.sp-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(20, 110, 245, 0.1);
}

.sp-input--error {
    border-color: var(--color-danger);
}

.sp-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--color-text);
}

/* --- Cards --- */
.sp-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: transform var(--transition-slow);
}

.sp-card:hover {
    transform: translateY(-2px);
}

.sp-card--flat {
    transition: none;
}

.sp-card--flat:hover {
    transform: none;
}

/* --- Badges --- */
.sp-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
}

.sp-badge--success {
    background: rgba(46, 158, 93, 0.1);
    color: var(--color-success);
}

.sp-badge--warning {
    background: rgba(236, 164, 19, 0.1);
    color: var(--color-warning);
}

.sp-badge--danger {
    background: rgba(217, 38, 38, 0.1);
    color: var(--color-danger);
}

.sp-badge--info {
    background: rgba(20, 110, 245, 0.1);
    color: var(--color-primary);
}

/* --- Tables --- */
.sp-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.sp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.sp-table th {
    text-align: left;
    padding: 12px var(--space-md);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.sp-table td {
    padding: 12px var(--space-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.sp-table tbody tr:hover {
    background: var(--color-bg-subtle);
}

/* --- Section Headers --- */
.sp-section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.sp-section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.sp-section-header p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Utility: Text --- */
.sp-text-center {
    text-align: center;
}

.sp-text-muted {
    color: var(--color-text-secondary);
}

.sp-text-sm {
    font-size: 0.875rem;
}

/* --- Utility: Spacing --- */
.sp-mt-sm {
    margin-top: var(--space-sm);
}

.sp-mt-md {
    margin-top: var(--space-md);
}

.sp-mt-lg {
    margin-top: var(--space-lg);
}

.sp-mt-xl {
    margin-top: var(--space-xl);
}

.sp-mb-md {
    margin-bottom: var(--space-md);
}

.sp-mb-lg {
    margin-bottom: var(--space-lg);
}

/* --- Utility: Flex --- */
.sp-flex {
    display: flex;
}

.sp-flex--center {
    align-items: center;
    justify-content: center;
}

.sp-flex--between {
    justify-content: space-between;
}

.sp-flex--gap-sm {
    gap: var(--space-sm);
}

.sp-flex--gap-md {
    gap: var(--space-md);
}

/* --- Footer --- */
.sp-footer {
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* --- Modal --- */
.sp-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.sp-modal-overlay--active {
    display: flex;
}

.sp-modal {
    background: var(--color-bg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 60px;
    border-radius: var(--radius-lg);
    position: relative;
}

.sp-modal__close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 24px;
    cursor: pointer;
    padding: var(--space-sm);
    line-height: 1;
}

/* --- Alert/Message Boxes --- */
.sp-alert {
    padding: var(--space-md);
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.sp-alert--info {
    background: rgba(45, 127, 210, 0.1);
    color: var(--color-info);
    border: 1px solid rgba(45, 127, 210, 0.2);
}

.sp-alert--success {
    background: rgba(46, 158, 93, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(46, 158, 93, 0.2);
}

.sp-alert--warning {
    background: rgba(236, 164, 19, 0.1);
    color: #8a6100;
    border: 1px solid rgba(236, 164, 19, 0.2);
}

.sp-alert--error {
    background: rgba(217, 38, 38, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(217, 38, 38, 0.2);
}

/* --- Spinner --- */
.sp-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-round);
    animation: sp-spin 0.6s linear infinite;
}

.sp-spinner--large {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

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

/* --- Google Places Autocomplete dropdown --- */
.pac-container {
    z-index: 3000;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    font-family: var(--font-body);
    margin-top: 4px;
}

.pac-item {
    padding: 8px 12px;
    font-size: 0.9rem;
    cursor: pointer;
}

.pac-item:hover {
    background: var(--color-bg-subtle);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sp-container {
        padding: 0 var(--space-md);
    }

    .sp-section {
        padding: var(--space-3xl) 0;
    }

    .sp-section-header h2 {
        font-size: 1.75rem;
    }

    .sp-nav__links {
        gap: var(--space-md);
    }

    .sp-modal {
        padding: var(--space-lg);
        margin: var(--space-md);
    }
}

@media (max-width: 479px) {
    .sp-section {
        padding: var(--space-2xl) 0;
    }

    .sp-btn--large {
        padding: 14px 24px;
        font-size: 1rem;
    }
}