/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    overflow-x: hidden;
}

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

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

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

/* ===== ANIMATIONS ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float-alt {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(10px); }
}

@keyframes blob {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(20px, -30px) scale(1.1); }
    50% { transform: translate(-10px, 20px) scale(0.95); }
    75% { transform: translate(15px, 10px) scale(1.05); }
}

@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== FLOATING CARDS ===== */
.floating-card {
    animation: float 4s ease-in-out infinite;
}

.floating-card:nth-child(2) {
    animation-delay: -1.3s;
    animation-duration: 4.5s;
}

.floating-card:nth-child(3) {
    animation-delay: -2.6s;
    animation-duration: 3.8s;
}

.animate-blob {
    animation: blob 7s ease-in-out infinite;
}

.animation-delay-2000 {
    animation-delay: 2s;
}

.animate-spin-slow {
    animation: spin-slow 20s linear infinite;
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

/* Staggered delays */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }

/* ===== NAVBAR ===== */
.nav-link {
    position: relative;
}

/* ===== HERO ===== */
.hero-gradient {
    background: linear-gradient(135deg, #1B4332 0%, #2d7a4f 50%, #1B4332 100%);
}

/* ===== PRODUCT CARDS ===== */
.product-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.product-card:hover {
    transform: translateY(-6px);
}

/* ===== BUTTONS ===== */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::after {
    opacity: 1;
}

/* ===== INPUT FOCUS ===== */
input:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(82, 183, 136, 0.2);
}

/* ===== MOBILE MENU ===== */
#mobile-menu.open {
    max-height: 400px;
}

/* ===== SECTION DIVIDER ===== */
.section-divider {
    height: 4px;
    background: linear-gradient(90deg, transparent, #52b788, transparent);
    border: none;
    margin: 0 auto;
    max-width: 200px;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #faf8f0;
}

::-webkit-scrollbar-thumb {
    background: #a8d4b0;
    border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
    background: #52b788;
}

/* ===== SELECTION ===== */
::selection {
    background: #a8d4b0;
    color: #1B4332;
}

/* ===== RESPONSIVE FINE-TUNING ===== */
@media (max-width: 640px) {
    .floating-card {
        display: none;
    }

    section {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (min-width: 641px) and (max-width: 1023px) {
    .floating-card {
        display: none;
    }
}

/* ===== PRINT ===== */
@media print {
    nav, #contact-form, .floating-card, .animate-blob {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }
}