/* Import distinctive fonts */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Nunito:wght@400;500;600;700&display=swap');

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Nature-inspired dark palette */
    --color-bg-dark: #141e1b;
    --color-bg-medium: #1a2825;
    --color-bg-card: #223330;
    --color-bg-elevated: #2a3f3a;
    
    /* Earthy, natural accent colors */
    --color-primary: #7db88f;
    --color-primary-light: #a5d4b4;
    --color-primary-dark: #5a9469;
    --color-secondary: #d4a574;
    --color-tertiary: #e88b8b;
    
    /* Text colors */
    --color-text: #f0f5f1;
    --color-text-muted: #a3b5ac;
    --color-text-dim: #6b7f75;
    
    /* Gradients */
    --gradient-warm: linear-gradient(135deg, #7db88f 0%, #5a9469 100%);
    --gradient-hero: radial-gradient(ellipse at 30% 0%, rgba(125, 184, 143, 0.12) 0%, transparent 50%),
                     radial-gradient(ellipse at 80% 50%, rgba(212, 165, 116, 0.08) 0%, transparent 40%);
    --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
    
    /* Spacing */
    --max-width: 1200px;
    --section-spacing: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg-dark);
    overflow-x: hidden;
}

/* Selection styling */
::selection {
    background-color: var(--color-primary);
    color: var(--color-bg-dark);
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==================== HEADER ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(20, 30, 27, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-medium);
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition-fast);
}

.logo-link:hover {
    transform: translateY(-1px);
}

.logo {
    height: 44px;
    width: auto;
    filter: drop-shadow(0 0 20px rgba(125, 184, 143, 0.3));
}

.logo-text {
    font-family: 'Fraunces', serif;
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 0.5rem;
}

.nav a {
    position: relative;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    transition: var(--transition-fast);
}

.nav a:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0.25rem;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-warm);
    border-radius: 2px;
    transform: translateX(-50%);
    transition: var(--transition-fast);
}

.nav a:hover::after {
    width: calc(100% - 2rem);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    text-decoration: none;
    border-radius: 100px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-warm);
    color: var(--color-bg-dark);
    box-shadow: 0 4px 20px rgba(125, 184, 143, 0.25),
                0 0 0 0 rgba(125, 184, 143, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(125, 184, 143, 0.35),
                0 0 0 0 rgba(125, 184, 143, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* ==================== HERO ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(125, 184, 143, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero h1 {
    font-family: 'Fraunces', serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 400;
    line-height: 1.15;
    margin-bottom: 1.75rem;
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out;
}

.hero h1 span {
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.1s backwards;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.trust-note {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-text-dim);
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 100px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
}

.trust-note::before {
    content: '⏱️';
}

/* ==================== SECTIONS ==================== */
section {
    padding: var(--section-spacing) 0;
    position: relative;
}

section h2 {
    font-family: 'Fraunces', serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
}

/* Section decorative elements */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

/* ==================== PROTECTED PAWS ==================== */
.protected {
    background: linear-gradient(180deg, var(--color-bg-medium) 0%, var(--color-bg-dark) 100%);
    text-align: center;
}

.protected h2,
.protected .section-intro {
    text-align: center;
}

.protected .section-intro {
    margin-left: auto;
    margin-right: auto;
}

.dogs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 3rem 0;
}

.dog-card {
    background: var(--color-bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-medium);
    text-align: left;
}

.dog-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.1);
}

.dog-card.loading-placeholder {
    min-height: 380px;
    background: linear-gradient(
        90deg,
        var(--color-bg-card) 0%,
        var(--color-bg-elevated) 50%,
        var(--color-bg-card) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.dog-card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    background: var(--color-bg-elevated);
}

.dog-card-content {
    padding: 1.5rem;
}

.dog-card-name {
    font-family: 'Fraunces', serif;
    font-size: 1.35rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.dog-card-status {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-secondary);
    margin-bottom: 0.75rem;
}

.dog-card-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-secondary);
    border-radius: 50%;
}

.dog-card-story {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-text-muted);
}

.dog-card-story strong {
    color: var(--color-primary-light);
    font-weight: 600;
}

.load-more-btn {
    margin-top: 1rem;
}

/* ==================== MISSION ==================== */
.mission {
    background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-medium) 100%);
    text-align: center;
}

.mission .container {
    max-width: 800px;
}

.mission p {
    font-size: 1.25rem;
    line-height: 2;
    color: var(--color-text-muted);
}

.mission-highlight {
    display: inline;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* ==================== HOW WE HELP ==================== */
.how-we-help {
    background: var(--color-bg-medium);
    position: relative;
}

.how-we-help::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.how-we-help h2 {
    text-align: center;
}

.how-we-help .section-intro {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.help-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.help-card {
    background: var(--color-bg-card);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
    transition: var(--transition-medium);
}

.help-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-warm);
    opacity: 0;
    transition: var(--transition-fast);
}

.help-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.help-card:hover::before {
    opacity: 1;
}

.help-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

.help-card:nth-child(1) .help-card-icon {
    background: linear-gradient(135deg, rgba(125, 184, 143, 0.25), rgba(125, 184, 143, 0.08));
}

.help-card:nth-child(2) .help-card-icon {
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.25), rgba(212, 165, 116, 0.08));
}

.help-card:nth-child(3) .help-card-icon {
    background: linear-gradient(135deg, rgba(232, 139, 139, 0.25), rgba(232, 139, 139, 0.08));
}

.help-card h3 {
    font-family: 'Fraunces', serif;
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.help-card p {
    color: var(--color-text-muted);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ==================== GET HELP ==================== */
.get-help {
    background: var(--color-bg-dark);
    position: relative;
}

.get-help::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 100%, rgba(125, 184, 143, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.get-help .container {
    position: relative;
    z-index: 1;
}

.get-help h2 {
    text-align: center;
}

.get-help .section-intro {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.help-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-bg-card);
    padding: 3rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-text);
    font-size: 0.95rem;
}

.required {
    color: var(--color-tertiary);
}

.optional {
    color: var(--color-text-dim);
    font-weight: 400;
    font-size: 0.85em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--color-bg-elevated);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--color-text);
    transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-dim);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(125, 184, 143, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.checkbox-group {
    margin-bottom: 2rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: 1rem 1.25rem;
    background: rgba(232, 139, 139, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(232, 139, 139, 0.2);
    transition: var(--transition-fast);
}

.checkbox-label:hover {
    background: rgba(232, 139, 139, 0.15);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-tertiary);
    margin-top: 0.1rem;
    cursor: pointer;
}

.help-form .btn-primary {
    width: 100%;
    padding: 1.125rem;
    font-size: 1rem;
}

.form-message {
    max-width: 600px;
    margin: 2rem auto 1rem;
    padding: 1.5rem;
    background: rgba(91, 191, 186, 0.1);
    border: 1px solid rgba(91, 191, 186, 0.3);
    border-radius: 16px;
    color: var(--color-secondary);
    text-align: center;
    font-weight: 500;
}

.contact-note {
    text-align: center;
    margin-top: 2.5rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.contact-note a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.contact-note a:hover {
    text-decoration: underline;
}

/* ==================== DONATE ==================== */
.donate {
    background: linear-gradient(180deg, var(--color-bg-medium) 0%, var(--color-bg-dark) 100%);
    text-align: center;
    position: relative;
}

.donate::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.donate .section-intro {
    margin-left: auto;
    margin-right: auto;
}

.donation-amounts {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 3rem 0 2rem;
}

.donation-btn {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    font-family: inherit;
    background: var(--color-bg-card);
    border: 2px solid rgba(125, 184, 143, 0.3);
    color: var(--color-primary);
    border-radius: 16px;
    cursor: pointer;
    transition: var(--transition-fast);
    min-width: 120px;
}

.donation-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg-dark);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(125, 184, 143, 0.3);
}

.donation-btn:active {
    transform: translateY(-2px);
}

.donation-note {
    color: var(--color-text-dim);
    font-size: 0.9rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 100px;
    display: inline-block;
}

/* ==================== CONTACT ==================== */
.contact {
    background: var(--color-bg-dark);
    text-align: center;
    padding: 6rem 0;
}

.contact h2 {
    margin-bottom: 1rem;
}

.contact p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
}

.contact a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.contact a:hover {
    text-decoration: underline;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--color-bg-medium);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 3rem 0;
    text-align: center;
}

.footer p {
    color: var(--color-text-dim);
    font-size: 0.9rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.footer-logo img {
    height: 28px;
    width: auto;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .help-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dogs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-spacing: 5rem;
    }
    
    .header-content {
        flex-wrap: wrap;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 0.25rem;
        padding-top: 0.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .nav a {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .header-content > .btn {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 10rem 0 6rem;
    }
    
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero-text {
        font-size: 1.1rem;
    }
    
    .help-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .dogs-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .dog-card-image {
        height: 200px;
    }
    
    .help-card {
        padding: 2rem;
    }
    
    .help-form {
        padding: 2rem;
        margin: 0 -0.5rem;
        border-radius: 20px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .donation-amounts {
        flex-direction: column;
        align-items: center;
    }
    
    .donation-btn {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .logo {
        height: 36px;
    }
    
    section h2 {
        font-size: 1.75rem;
    }
    
    .help-card {
        padding: 1.5rem;
    }
    
    .help-form {
        padding: 1.5rem;
    }
}

/* ==================== ANIMATIONS ==================== */
@media (prefers-reduced-motion: no-preference) {
    .help-card {
        animation: fadeInUp 0.6s ease-out backwards;
    }
    
    .help-card:nth-child(1) { animation-delay: 0.1s; }
    .help-card:nth-child(2) { animation-delay: 0.2s; }
    .help-card:nth-child(3) { animation-delay: 0.3s; }
}

/* Scroll reveal animations */
@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    animation: revealUp 0.6s ease-out backwards;
}